using System;
using System.Collections;
using System.Collections.Generic;
using System.Data;
using System.Data.SqlClient;
using System.Text.RegularExpressions;
using System.Xml;
namespace HHTechDB
{
public sealed class SqlHelper
{
public SqlHelper()
{
//
//TODO: 在此处添加构造函数逻辑
//
//this.ConnectionString = ConfigurationManager.ConnectionStrings["connstr"].ConnectionString;
}
///// <summary>
///// 数据库连接字符串
///// </summary>
//public string ConnectionString { get; set; }
/// <summary>
/// 超时设置
/// </summary>
private const int CommandTimeOut = 6000;
/// <summary>
/// 批量操作每批次记录数
/// </summary>
public static int BatchSize = 2000;
/// <summary>
/// 数据库连接
/// </summary>
public static string cStr = "";
#region ExecuteEmptyDataTable
/// <summary>
/// 获取空表结构
/// </summary>
/// <param name="connectionString">数据库连接字符串</param>
/// <param name="tableName">数据表名称</param>
/// <returns>返回结果集中的第一个数据表</returns>
public static DataTable ExecuteEmptyDataTable(string connectionString, string tableName)
{
return ExecuteDataset(connectionString, CommandType.Text, string.Format("select * from {0} where 1=-1", tableName)).Tables[0];
}
#endregion
#region QueryList
public static List<T> QueryList<T>(string sql) where T : class, new()
{
return QueryList<T>(cStr, sql, (SqlParameter[])null);
}
public static List<T> QueryList<T>(string sql,string[,] para) where T : class, new()
{
return QueryList<T>(cStr,sql, para);
}
public static List<T> QueryList<T>(string conn,string sql) where T : class, new()
{
return QueryList<T>(conn, sql, (SqlParameter[])null);
}
public static List<T> QueryList<T>(string conn, string sql,string[,] para) where T:class,new()
{
// 实例化一个List<> 泛型集合
//List<T> DataList = null;
//IDataReader reader = ExecuteReader(conn, sql,para);
//while (reader.Read())
//{
// T RowInstance = Activator.CreateInstance<T>();//动态创建数据实体对象
// //通过反射取得对象所有的Property
// foreach (PropertyInfo Property in typeof(T).GetProperties())
// {
// try
// {
// //取得当前数据库字段的顺序
// int Ordinal = reader.GetOrdinal(Property.Name);
// if (reader.GetValue(Ordinal) != DBNull.Value)
// {
// //将DataReader读取出来的数据填充到对象实体的属性里
// Property.SetValue(RowInstance, Convert.ChangeType(reader.GetValue(Ordinal), Property.PropertyType), null);
// }
// }
// catch(Exception ex)
// {
// HHTech.Log.Error("数据库运行错误！" + sql, ex);
// break;
// }
// }
// DataList.Add(RowInstance);
//}
//return DataList;
return new ModelHandler<T>().FillModel(ExecuteDataTable(conn, sql, para));
}
public static List<T> QueryList<T>(string conn, string sql, params SqlParameter[] para) where T : class, new()
{
return new ModelHandler<T>().FillModel(ExecuteDataTable(conn, CommandType.Text, sql, para));
//IDataReader reader = ExecuteReader(conn, sql, para);
////实例化一个List<>泛型集合
//List<T> DataList = new List<T>();
//while (reader.Read())
//{
// T RowInstance = Activator.CreateInstance<T>();//动态创建数据实体对象
// //通过反射取得对象所有的Property
// foreach (PropertyInfo Property in typeof(T).GetProperties())
// {
// try
// {
// //取得当前数据库字段的顺序
// int Ordinal = reader.GetOrdinal(Property.Name);
// if (reader.GetValue(Ordinal) != DBNull.Value)
// {
// //将DataReader读取出来的数据填充到对象实体的属性里
// Property.SetValue(RowInstance, Convert.ChangeType(reader.GetValue(Ordinal), Property.PropertyType), null);
// }
// }
// catch (Exception ex)
// {
// HHTech.Log.Error("数据库运行错误！" + sql, ex);
// break;
// }
// }
// DataList.Add(RowInstance);
//}
//return DataList;
}
#endregion
#region 私有构造函数和方法
/// <summary>
/// 将SqlParameters参数数组（参数值）分配给SqlCommand命令
/// 这个方法将给任何一个参数分配DBNull.Value
/// 该操作将阻止默认值的使用（大爷的，没看懂）
/// </summary>
/// <param name="command">要分配SqlParameters参数的SqlCommand命令</param>
/// <param name="commandParameters">SqlParameters参数数组</param>
private static void AttachParameters(SqlCommand command, SqlParameter[] commandParameters)
{
if (command == null) throw new ArgumentNullException("command");
if (commandParameters != null)
{
foreach (SqlParameter p in commandParameters)
{
if (p != null)
{
// Check for derived output value with no value assigned
if ((p.Direction == ParameterDirection.InputOutput ||
p.Direction == ParameterDirection.Input) &&
(p.Value == null))
{
p.Value = DBNull.Value;
}
command.Parameters.Add(p);
}
}
}
}
#region 自己添加函数
//================自己添加函数=====================
private static string NullToStr(string str)
{
if (str == null)
{
return "";
}
return str;
}
/// <summary>
/// 将SqlParameters参数数组（参数值）分配给SqlCommand命令
/// 这个方法将给任何一个参数分配DBNull.Value
/// 该操作将阻止默认值的使用（大爷的，没看懂）
/// </summary>
/// <param name="command">要分配SqlParameters参数的SqlCommand命令</param>
/// <param name="para">
/// string2维数组
/// <para>1.string[,] para={{"参数名","参数值","获取或设置一个值，该值指示参数是只可输入、只可输出、双向还是存储过程返回值参数"}}; Input,InputOutput,Output,ReturnValue</para>
/// <para>2.string[,] para={{"参数名","参数值"}}; 少的这个为默认Input只可输入</para>
/// </param>
private static void AttachParameters(SqlCommand command, string[,] para)
{
if (command == null) throw new ArgumentNullException("command");
if (para != null)
{
SqlParameter p;
int wssx = para.GetLength(1); //得到维数的上限 1=2个 2=3个
//para 是一个二维数组，
//para.GetLength(0) 获得第一维的长度（行数），para.GetLength(1)获得第二维的长度（列数）。
//int wssx1 = para.Rank;
for (int i = 0; i < para.GetLength(0); i++)
{
if (para[i, 1] == null) //|| para[i, 1] == ""
{
p = new SqlParameter(para[i, 0], System.DBNull.Value);
}
else
{
p = new SqlParameter(para[i, 0], NullToStr(para[i, 1]));
}
if (wssx == 3 && para[i, 2] != "")
{
//ParameterDirection.Input
//ParameterDirection.InputOutput
//ParameterDirection.Output
//ParameterDirection.ReturnValue
switch (para[i, 2])
{
case "Input":
p.Direction = ParameterDirection.Input;
break;
case "InputOutput":
p.Direction = ParameterDirection.InputOutput;
break;
case "Output":
p.Direction = ParameterDirection.Output;
break;
case "ReturnValue":
p.Direction = ParameterDirection.ReturnValue;
break;
}
}
command.Parameters.Add(p);
}
}
}
//================自己添加函数=====================
#endregion
/// <summary>
/// 将DataRow类型的列值分配到SqlParameter参数数组
/// </summary>
/// <param name="commandParameters">要分配的SqlParameter参数数组</param>
/// <param name="dataRow">将要分配给存储过程参数的DataRow</param>
private static void AssignParameterValues(SqlParameter[] commandParameters, DataRow dataRow)
{
if ((commandParameters == null) || (dataRow == null))
{
// 没有接收到数据就返回
return;
}
int i = 0;
// 设置参数值
foreach (SqlParameter commandParameter in commandParameters)
{
// 检查参数名称，如果不存在，抛出一个异常
if (commandParameter.ParameterName == null ||
commandParameter.ParameterName.Length <= 1)
throw new Exception(
string.Format(
"请提供参数{0},一个有效的名称{1}.",
i, commandParameter.ParameterName));
// 从DataRow的表中获取为参数数组中数组名称的列的索引.
// 如果存在和参数名称相同的列,则将列值赋给当前名称的参数.
if (dataRow.Table.Columns.IndexOf(commandParameter.ParameterName.Substring(1)) != -1)
commandParameter.Value = dataRow[commandParameter.ParameterName.Substring(1)];
i++;
}
}
/// <summary>
/// 将一个对象数组分配给SqlParameter参数数组.（重载方法）
/// </summary>
/// <param name="commandParameters">要分配的SqlParameter参数数组</param>
/// <param name="parameterValues">将要分配给存储过程参数的对象数组</param>
private static void AssignParameterValues(SqlParameter[] commandParameters, object[] parameterValues)
{
if ((commandParameters == null) || (parameterValues == null))
{
return;
}
// 确保对象数组个数与参数个数匹配,如果不匹配,抛出一个异常
if (commandParameters.Length != parameterValues.Length)
{
throw new ArgumentException("参数值个数与参数不匹配.");
}
// 给参数赋值
for (int i = 0, j = commandParameters.Length; i < j; i++)
{
if (parameterValues[i] is IDbDataParameter)
{
IDbDataParameter paramInstance = (IDbDataParameter)parameterValues[i];
if (paramInstance.Value == null)
{
commandParameters[i].Value = DBNull.Value;
}
else
{
commandParameters[i].Value = paramInstance.Value;
}
}
else if (parameterValues[i] == null)
{
commandParameters[i].Value = DBNull.Value;
}
else
{
commandParameters[i].Value = parameterValues[i];
}
}
}
/// <summary>
/// 预处理用户提供的命令,数据库连接/事务/命令类型/参数
/// </summary>
/// <param name="command">要处理的SqlCommand</param>
/// <param name="connection">有效的数据库连接</param>
/// <param name="transaction">一个有效的事务或者是null值</param>
/// <param name="commandType">命令类型 (存储过程,命令文本, 其它.)</param>
/// <param name="commandText">存储过程名或都T-SQL命令文本</param>
/// <param name="commandParameters">和命令相关联的SqlParameter参数数组,如果没有参数为'null'</param>
/// <param name="mustCloseConnection"><c>true</c> 如果连接是打开的,则为true,其它情况下为false.</param>
private static void PrepareCommand(SqlCommand command, SqlConnection connection, SqlTransaction transaction, CommandType commandType, string commandText, SqlParameter[] commandParameters, out bool mustCloseConnection)
{
//IntelnetConnState.HasNetworkAlive();
if (command == null) throw new ArgumentNullException("command");
if (commandText == null || commandText.Length == 0) throw new ArgumentNullException("commandText");
if (connection.State != ConnectionState.Open)
{
mustCloseConnection = true;
connection.Open();
}
else
{
mustCloseConnection = false;
}
command.CommandTimeout = 1000*10;//1000 * 60 * 60; // 60分钟
// 给命令分配一个数据库连接.
command.Connection = connection;
// 设置命令文本(存储过程名或SQL语句)
command.CommandText = commandText;
// 分配事务
if (transaction != null)
{
if (transaction.Connection == null) throw new ArgumentException("The transaction was rollbacked or commited, please provide an open transaction.", "transaction");
command.Transaction = transaction;
}
// 设置命令类型.
command.CommandType = commandType;
// 分配命令参数
if (commandParameters != null)
{
AttachParameters(command, commandParameters);
}
return;
}
/// <summary>
/// 预处理用户提供的命令,数据库连接/事务/命令类型/参数
/// </summary>
/// <param name="command">要处理的SqlCommand</param>
/// <param name="connection">有效的数据库连接</param>
/// <param name="transaction">一个有效的事务或者是null值</param>
/// <param name="commandType">命令类型 (存储过程,命令文本, 其它.)</param>
/// <param name="commandText">存储过程名或都T-SQL命令文本</param>
/// <param name="para">
/// <para>和命令相关联的string2维数组,如果没有参数为'null'</para>
/// <para>1.string[,] para={{"参数名","参数值","获取或设置一个值，该值指示参数是只可输入、只可输出、双向还是存储过程返回值参数"}}; Input,InputOutput,Output,ReturnValue</para>
/// <para>2.string[,] para={{"参数名","参数值"}}; 少的这个为默认Input只可输入</para>
/// </param>
/// <param name="mustCloseConnection"><c>true</c> 如果连接是打开的,则为true,其它情况下为false.</param>
private static void PrepareCommand(SqlCommand command, SqlConnection connection, SqlTransaction transaction, CommandType commandType, string commandText, string[,] para, out bool mustCloseConnection)
{
if (command == null) throw new ArgumentNullException("command");
if (commandText == null || commandText.Length == 0) throw new ArgumentNullException("commandText");
//IntelnetConnState.HasNetworkAlive();
if (connection.State != ConnectionState.Open)
{
mustCloseConnection = true;
connection.Open();
}
else
{
mustCloseConnection = false;
}
command.CommandTimeout = 1000 * 60 * 6; // 6分钟
// 给命令分配一个数据库连接.
command.Connection = connection;
// 设置命令文本(存储过程名或SQL语句)
command.CommandText = commandText;
// 分配事务
if (transaction != null)
{
if (transaction.Connection == null) throw new ArgumentException("The transaction was rollbacked or commited, please provide an open transaction.", "transaction");
command.Transaction = transaction;
}
// 设置命令类型.
command.CommandType = commandType;
// 分配命令参数
if (para != null)
{
AttachParameters(command, para);
}
return;
}
#endregion 私有构造函数和方法结束
#region ExecuteNonQuery命令
/// <summary>
/// 执行指定连接字符串,类型的SqlCommand.如果没有提供参数,不返回结果
/// </summary>
/// <remarks>
/// 示例:
/// int result = ExecuteNonQuery(sql);
/// </remarks>
/// <param name="commandText">存储过程名称或SQL语句</param>
/// <para>和命令相关联的string2维数组,如果没有参数为'null'</para>
/// <para>1.string[,] para={{"参数名","参数值","获取或设置一个值，该值指示参数是只可输入、只可输出、双向还是存储过程返回值参数"}}; Input,InputOutput,Output,ReturnValue</para>
/// <para>2.string[,] para={{"参数名","参数值"}}; 少的这个为默认Input只可输入</para>
/// </param>
/// <returns>返回命令影响的行数</retTurns>
public static int ExecuteNonQuery(string commandText, SqlParameter[] paras = null)
{
// ExecuteNonQuery #2
//if (connectionString == null || connectionString.Length == 0) throw new ArgumentNullException("connectionString");
using (SqlConnection connection = new SqlConnection(cStr))
{
connection.Open();
return ExecuteNonQuery(connection, CommandType.Text, commandText, paras);
}
}
/// <summary>
/// 执行指定连接字符串,类型的SqlCommand.如果没有提供参数,不返回结果
/// </summary>
/// <remarks>
/// 示例:
/// int result = ExecuteNonQuery( sql,para);
/// </remarks>
/// <param name="commandText">存储过程名称或SQL语句</param>
/// <param name="para">
/// <para>和命令相关联的string2维数组,如果没有参数为'null'</para>
/// <para>1.string[,] para={{"参数名","参数值","获取或设置一个值，该值指示参数是只可输入、只可输出、双向还是存储过程返回值参数"}}; Input,InputOutput,Output,ReturnValue</para>
/// <para>2.string[,] para={{"参数名","参数值"}}; 少的这个为默认Input只可输入</para>
/// </param>
/// <returns>返回命令影响的行数</retTurns>
public static int ExecuteNonQuery(string commandText, string[,] para)
{
// ExecuteNonQuery #2
//if (connectionString == null || connectionString.Length == 0) throw new ArgumentNullException("connectionString");
using (SqlConnection connection = new SqlConnection(cStr))
{
connection.Open();
return ExecuteNonQuery(connection, CommandType.Text, commandText, para);
}
}
/// <summary>
/// 执行指定连接字符串,类型的SqlCommand.
/// </summary>
/// <remarks>
/// 示例:
/// int result = ExecuteNonQuery(connString, CommandType.StoredProcedure, "PublishOrders");
/// </remarks>
/// <param name="connectionString">一个有效的数据库连接字符串</param>
/// <param name="commandType">命令类型 (存储过程,命令文本, 其它.)</param>
/// <param name="commandText">存储过程名称或SQL语句</param>
/// <returns>返回命令影响的行数</returns>
public static int ExecuteNonQuery(string connectionString, CommandType commandType, string commandText)
{
// ExecuteNonQuery #1
return ExecuteNonQuery(connectionString, commandType, commandText, (SqlParameter[])null);
}
/// <summary>
/// 执行指定连接字符串,类型的SqlCommand.如果没有提供参数,不返回结果
/// </summary>
/// <remarks>
/// 示例:
/// int result = ExecuteNonQuery(connString, CommandType.StoredProcedure, "PublishOrders", new SqlParameter("@prodid", 24));
/// </remarks>
/// <param name="connectionString">一个有效的数据库连接字符串</param>
/// <param name="commandType">命令类型 (存储过程,命令文本, 其它.)</param>
/// <param name="commandText">存储过程名称或SQL语句</param>
/// <param name="commandParameters">SqlParameter参数数组</param>
/// <returns>返回命令影响的行数</returns>
public static int ExecuteNonQuery(string connectionString, CommandType commandType, string commandText, params SqlParameter[] commandParameters)
{
// ExecuteNonQuery #2
if (connectionString == null || connectionString.Length == 0) throw new ArgumentNullException("connectionString");
using (SqlConnection connection = new SqlConnection(connectionString))
{
//IntelnetConnState.HasNetworkAlive();
connection.Open();
return ExecuteNonQuery(connection, commandType, commandText, commandParameters);
}
}
/// <summary>
/// 执行指定连接字符串,类型的SqlCommand.如果没有提供参数,不返回结果
/// </summary>
/// <remarks>
/// 示例:
/// int result = ExecuteNonQuery(connString, CommandType.StoredProcedure, "PublishOrders",para);
/// </remarks>
/// <param name="connectionString">一个有效的数据库连接字符串</param>
/// <param name="commandType">命令类型 (存储过程,命令文本, 其它.)</param>
/// <param name="commandText">存储过程名称或SQL语句</param>
/// <param name="para">
/// <para>和命令相关联的string2维数组,如果没有参数为'null'</para>
/// <para>1.string[,] para={{"参数名","参数值","获取或设置一个值，该值指示参数是只可输入、只可输出、双向还是存储过程返回值参数"}}; Input,InputOutput,Output,ReturnValue</para>
/// <para>2.string[,] para={{"参数名","参数值"}}; 少的这个为默认Input只可输入</para>
/// </param>
/// <returns>返回命令影响的行数</returns>
public static int ExecuteNonQuery(string connectionString, CommandType commandType, string commandText, string[,] para)
{
// ExecuteNonQuery #2
if (connectionString == null || connectionString.Length == 0) throw new ArgumentNullException("connectionString");
using (SqlConnection connection = new SqlConnection(connectionString))
{
//IntelnetConnState.HasNetworkAlive();
connection.Open();
return ExecuteNonQuery(connection, commandType, commandText, para);
}
}
/// <summary>
/// 执行指定连接字符串的存储过程,将对象数组的值赋给存储过程参数.
/// 此方法需要在参数缓存方法中探索参数并生成参数.
/// </summary>
/// <remarks>
/// 这个方法没有提供访问输出参数和返回值.
/// 示例:
/// int result = ExecuteNonQuery(connString, "PublishOrders", 24, 36);
/// </remarks>
/// <param name="connectionString">一个有效的数据库连接字符串</param>
/// <param name="spName">存储过程名称</param>
/// <param name="parameterValues">分配到存储过程输入参数的对象数组</param>
/// <returns>返回受影响的行数</returns>
public static int ExecuteNonQuery(string connectionString, string spName, params object[] parameterValues)
{
// ExecuteNonQuery #3
if (connectionString == null || connectionString.Length == 0) throw new ArgumentNullException("connectionString");
if (spName == null || spName.Length == 0) throw new ArgumentNullException("spName");
// 如果存在参数值，我们要搞清楚他们去哪里
if ((parameterValues != null) && (parameterValues.Length > 0))
{
// 从探索存储过程参数(加载到缓存)并分配给存储过程参数数组.
SqlParameter[] commandParameters = GetSpParameterSet(connectionString, spName);
// 给存储过程参数赋值
AssignParameterValues(commandParameters, parameterValues);
return ExecuteNonQuery(connectionString, CommandType.StoredProcedure, spName, commandParameters);
}
else
{
// 没有参数情况下
return ExecuteNonQuery(connectionString, CommandType.StoredProcedure, spName);
}
}
/// <summary>
/// 执行指定数据库连接对象的命令.
/// </summary>
/// <remarks>
/// 示例:
/// int result = ExecuteNonQuery(conn, CommandType.StoredProcedure, "PublishOrders");
/// </remarks>
/// <param name="connection">一个有效的数据库连接对象</param>
/// <param name="commandType">命令类型(存储过程,命令文本或其它.)</param>
/// <param name="commandText">存储过程名称或T-SQL语句</param>
/// <returns>返回影响的行数</returns>
public static int ExecuteNonQuery(SqlConnection connection, CommandType commandType, string commandText)
{
// ExecuteNonQuery #4
return ExecuteNonQuery(connection, commandType, commandText, (SqlParameter[])null);
}
/// <summary>
/// 执行指定数据库连接对象的命令
/// </summary>
/// <remarks>
/// 示例:
/// int result = ExecuteNonQuery(conn, CommandType.StoredProcedure, "PublishOrders", new SqlParameter("@prodid", 24));
/// </remarks>
/// <param name="connection">一个有效的数据库连接对象</param>
/// <param name="commandType">命令类型(存储过程,命令文本或其它.)</param>
/// <param name="commandText">T存储过程名称或T-SQL语句</param>
/// <param name="commandParameters">SqlParamter参数数组</param>
/// <returns>返回影响的行数</returns>
public static int ExecuteNonQuery(SqlConnection connection, CommandType commandType, string commandText, params SqlParameter[] commandParameters)
{
// ExecuteNonQuery #5
if (connection == null) throw new ArgumentNullException("connection");
SqlCommand cmd = new SqlCommand();
cmd.CommandTimeout = CommandTimeOut;
bool mustCloseConnection = false;
PrepareCommand(cmd, connection, (SqlTransaction)null, commandType, commandText, commandParameters, out mustCloseConnection);
int retval = cmd.ExecuteNonQuery();
cmd.Parameters.Clear();
if (mustCloseConnection)
connection.Close();
return retval;
}
/// <summary>
/// 执行指定数据库连接对象的命令
/// </summary>
/// <remarks>
/// 示例:
/// int result = ExecuteNonQuery(conn, CommandType.Text, sql, para);
/// </remarks>
/// <param name="connection">一个有效的数据库连接对象</param>
/// <param name="commandType">命令类型(存储过程,命令文本或其它.)</param>
/// <param name="commandText">T存储过程名称或T-SQL语句</param>
/// <param name="para">
/// string2维数组
/// <para>1.string[,] para={{"参数名","参数值","获取或设置一个值，该值指示参数是只可输入、只可输出、双向还是存储过程返回值参数"}}; Input,InputOutput,Output,ReturnValue</para>
/// <para>2.string[,] para={{"参数名","参数值"}}; 少的这个为默认Input只可输入</para>
/// </param>
/// <returns>返回影响的行数</returns>
public static int ExecuteNonQuery(SqlConnection connection, CommandType commandType, string commandText, string[,] para)
{
// ExecuteNonQuery #6
if (connection == null) throw new ArgumentNullException("connection");
SqlCommand cmd = new SqlCommand();
cmd.CommandTimeout = CommandTimeOut;
//cmd.CommandTimeout = 1000 * 60;
bool mustCloseConnection = false;
PrepareCommand(cmd, connection, (SqlTransaction)null, commandType, commandText, para, out mustCloseConnection);
int retval = cmd.ExecuteNonQuery();
cmd.Parameters.Clear();
if (mustCloseConnection)
connection.Close();
return retval;
}
/// <summary>
/// 执行指定数据库连接对象的命令,将对象数组的值赋给存储过程参数.
/// </summary>
/// <remarks>
/// 此方法不提供访问存储过程输出参数和返回值
/// 示例:
/// int result = ExecuteNonQuery(conn, "PublishOrders", 24, 36);
/// </remarks>
/// <param name="connection">一个有效的数据库连接对象</param>
/// <param name="spName">存储过程名</param>
/// <param name="parameterValues">分配给存储过程输入参数的对象数组</param>
/// <returns>返回影响的行数</returns>
public static int ExecuteNonQuery(SqlConnection connection, string spName, params object[] parameterValues)
{
// ExecuteNonQuery #6
if (connection == null) throw new ArgumentNullException("connection");
if (spName == null || spName.Length == 0) throw new ArgumentNullException("spName");
// 如果有参数值
if ((parameterValues != null) && (parameterValues.Length > 0))
{
// 从缓存中加载存储过程参数
SqlParameter[] commandParameters = GetSpParameterSet(connection, spName);
// 给存储过程分配参数值
AssignParameterValues(commandParameters, parameterValues);
return ExecuteNonQuery(connection, CommandType.StoredProcedure, spName, commandParameters);
}
else
{
return ExecuteNonQuery(connection, CommandType.StoredProcedure, spName);
}
}
/// <summary>
/// 执行带事务的SqlCommand.
/// </summary>
/// <remarks>
/// 示例:
/// int result = ExecuteNonQuery(trans, CommandType.StoredProcedure, "PublishOrders");
/// </remarks>
/// <param name="transaction">一个有效的事物</param>
/// <param name="commandText">存储过程名称或T-SQL语句</param>
/// <returns>返回影响的行数</returns>
public static int ExecuteNonQuery(SqlTransaction transaction, string commandText)
{
// ExecuteNonQuery #7
return ExecuteNonQuery(transaction, CommandType.Text, commandText, (SqlParameter[])null);
}
/// <summary>
/// 执行带事务的SqlCommand.
/// </summary>
/// <remarks>
/// 示例:
/// int result = ExecuteNonQuery(trans, CommandType.StoredProcedure, "PublishOrders");
/// </remarks>
/// <param name="transaction">一个有效的事物</param>
/// <param name="commandType">命令类型(存储过程,命令文本或其它.)</param>
/// <param name="commandText">存储过程名称或T-SQL语句</param>
/// <returns>返回影响的行数</returns>
public static int ExecuteNonQuery(SqlTransaction transaction, CommandType commandType, string commandText)
{
// ExecuteNonQuery #7
return ExecuteNonQuery(transaction, commandType, commandText, (SqlParameter[])null);
}
/// <summary>
/// 执行带事务的SqlCommand(指定参数).
/// </summary>
/// <remarks>
/// 示例:
/// int result = ExecuteNonQuery(trans, CommandType.StoredProcedure, "GetOrders", new SqlParameter("@prodid", 24));
/// </remarks>
/// <param name="transaction">一个有效的数据库事物</param>
/// <param name="commandType">命令类型(存储过程,命令文本或其它.)</param>
/// <param name="commandText">存储过程名称或T-SQL语句</param>
/// <param name="commandParameters">SqlParamter参数数组</param>
/// <returns>返回影响的行数</returns>
public static int ExecuteNonQuery(SqlTransaction transaction, CommandType commandType, string commandText, params SqlParameter[] commandParameters)
{
int retval = 0;
try
{
// ExecuteNonQuery #8
if (transaction == null) throw new ArgumentNullException("transaction");
if (transaction != null && transaction.Connection == null) throw new ArgumentException("The transaction was rollbacked or commited, please provide an open transaction.", "transaction");
//预处理
SqlCommand cmd = new SqlCommand();
cmd.CommandTimeout = CommandTimeOut;
bool mustCloseConnection = false;
PrepareCommand(cmd, transaction.Connection, transaction, commandType, commandText, commandParameters, out mustCloseConnection);
// 执行
retval = cmd.ExecuteNonQuery();
// 清除参数集,以便再次使用
cmd.Parameters.Clear();
}
catch(Exception ex)
{
HHTech.Log.Error("数据库运行错误！" + commandText, ex);
}
return retval;
}
/// <summary>
/// 执行带事务的SqlCommand(指定参数).
/// </summary>
/// <remarks>
/// 示例:
/// int result = ExecuteNonQuery(trans, CommandType.StoredProcedure, "GetOrders", para);
/// </remarks>
/// <param name="transaction">一个有效的数据库事物</param>
/// <param name="commandText">存储过程名称或T-SQL语句</param>
/// <param name="para">
/// string2维数组
/// <para>1.string[,] para={{"参数名","参数值","获取或设置一个值，该值指示参数是只可输入、只可输出、双向还是存储过程返回值参数"}}; Input,InputOutput,Output,ReturnValue</para>
/// <para>2.string[,] para={{"参数名","参数值"}}; 少的这个为默认Input只可输入</para>
/// </param>
/// <returns>返回影响的行数</returns>
public static int ExecuteNonQuery(SqlTransaction transaction, string commandText, string[,] para)
{
return ExecuteNonQuery(transaction, CommandType.Text, commandText, para);
}
/// <summary>
/// 执行带事务的SqlCommand(指定参数).
/// </summary>
/// <remarks>
/// 示例:
/// int result = ExecuteNonQuery(trans, CommandType.StoredProcedure, "GetOrders", para);
/// </remarks>
/// <param name="transaction">一个有效的数据库事物</param>
/// <param name="commandType">命令类型(存储过程,命令文本或其它.)</param>
/// <param name="commandText">存储过程名称或T-SQL语句</param>
/// <param name="para">
/// string2维数组
/// <para>1.string[,] para={{"参数名","参数值","获取或设置一个值，该值指示参数是只可输入、只可输出、双向还是存储过程返回值参数"}}; Input,InputOutput,Output,ReturnValue</para>
/// <para>2.string[,] para={{"参数名","参数值"}}; 少的这个为默认Input只可输入</para>
/// </param>
/// <returns>返回影响的行数</returns>
public static int ExecuteNonQuery(SqlTransaction transaction, CommandType commandType, string commandText, string[,] para)
{
int retval = 0;
try
{
// ExecuteNonQuery #8
if (transaction == null) throw new ArgumentNullException("transaction");
if (transaction != null && transaction.Connection == null) throw new ArgumentException("The transaction was rollbacked or commited, please provide an open transaction.", "transaction");
//预处理
SqlCommand cmd = new SqlCommand();
cmd.CommandTimeout = CommandTimeOut;
bool mustCloseConnection = false;
PrepareCommand(cmd, transaction.Connection, transaction, commandType, commandText, para, out mustCloseConnection);
// 执行
retval = cmd.ExecuteNonQuery();
// 清除参数集,以便再次使用
cmd.Parameters.Clear();
}
catch (Exception ex)
{
HHTech.Log.Error("数据库运行错误！" + commandText, ex);
}
return retval;
}
/// <summary>
/// 执行带事务的SqlCommand(指定参数值).
/// </summary>
/// <remarks>
/// 此方法不提供访问存储过程输出参数和返回值
/// 示例:
/// int result = ExecuteNonQuery(conn, trans, "PublishOrders", 24, 36);
/// </remarks>
/// <param name="transaction">一个有效的数据库连接对象</param>
/// <param name="spName">存储过程名</param>
/// <param name="parameterValues">分配给存储过程输入参数的对象数组</param>
/// <returns>返回受影响的行数</returns>
public static int ExecuteNonQuery(SqlTransaction transaction, string spName, params object[] parameterValues)
{
// ExecuteNonQuery #9
if (transaction == null) throw new ArgumentNullException("transaction");
if (transaction != null && transaction.Connection == null) throw new ArgumentException("The transaction was rollbacked or commited, please provide an open transaction.", "transaction");
if (spName == null || spName.Length == 0) throw new ArgumentNullException("spName");
// 如果有参数值
if ((parameterValues != null) && (parameterValues.Length > 0))
{
// 从缓存中加载存储过程参数,如果缓存中不存在则从数据库中检索参数信息并加载到缓存中.
SqlParameter[] commandParameters = GetSpParameterSet(transaction.Connection, spName);
// 给存储过程参数赋值
AssignParameterValues(commandParameters, parameterValues);
// 调用重载方法
return ExecuteNonQuery(transaction, CommandType.StoredProcedure, spName, commandParameters);
}
else
{
// 没有参数值
return ExecuteNonQuery(transaction, CommandType.StoredProcedure, spName);
}
}
#endregion ExecuteNonQuery命令
#region ExecuteDataRow
/// <summary>
/// 执行SQL语句,返回结果集中的第一行
/// </summary>
/// <param name="sql">SQL语句</param>
/// <returns>,返回结果集中的第一行</returns>
public static DataRow ExecuteDataRow(string sql)
{
DataTable dt = ExecuteDataTable(sql);
return dt.Rows.Count > 0 ? dt.Rows[0] : null;
}
/// <summary>
/// 执行SQL语句,返回结果集中的第一行
/// </summary>
/// <param name="sql">SQL语句</param>
/// <param name="para">参数</param>
/// <returns>,返回结果集中的第一行</returns>
public static DataRow ExecuteDataRow(string sql, string[,] para)
{
DataTable dt = ExecuteDataTable(sql,para);
return dt.Rows.Count > 0 ? dt.Rows[0] : null;
}
/// <summary>
/// 执行SQL语句,返回结果集中的第一行
/// </summary>
/// <param name="conn">数据库连接字符串</param>
/// <param name="sql">SQL语句或存储过程名称</param>
/// <returns>返回结果集中的第一个数据表</returns>
public static DataRow ExecuteDataRow(string conn, string sql)
{
DataTable dt = ExecuteDataTable(conn,sql);
return dt.Rows.Count > 0 ? dt.Rows[0] : null;
}
/// <summary>
/// 执行SQL语句,返回结果集中的第一行
/// </summary>
/// <param name="conn">数据库连接字符串</param>
/// <param name="sql">SQL语句或存储过程名称</param>
/// <param name="para">查询参数</param>
/// <returns>返回结果集中的第一个数据表</returns>
public static DataRow ExecuteDataRow(string conn, string sql, string[,] para)
{
DataTable dt = ExecuteDataTable(conn,sql, para);
return dt.Rows.Count > 0 ? dt.Rows[0] : null;
}
/// <summary>
/// 执行SQL语句,返回结果集中的第一行
/// </summary>
/// <param name="connectionString">数据库连接字符串</param>
/// <param name="commandType">命令类型(存储过程,命令文本, 其它.)</param>
/// <param name="commandText">SQL语句或存储过程名称</param>
/// <param name="parms">查询参数</param>
/// <returns>返回结果集中的第一个数据表</returns>
public static DataRow ExecuteDataRow(string connectionString, CommandType commandType, string commandText, string[,] parms)
{
DataTable dt = ExecuteDataTable(connectionString, commandType, commandText, parms);
return dt.Rows.Count > 0 ? dt.Rows[0] : null;
}
/// <summary>
/// 执行SQL语句,返回结果集中的第一行
/// </summary>
/// <param name="connection">数据库连接</param>
/// <param name="commandType">命令类型(存储过程,命令文本, 其它.)</param>
/// <param name="commandText">SQL语句或存储过程名称</param>
/// <param name="parms">查询参数</param>
/// <returns>返回结果集中的第一个数据表</returns>
public static DataRow ExecuteDataRow(SqlConnection connection, CommandType commandType, string commandText, string[,] parms)
{
DataTable dt = ExecuteDataTable(connection, commandType, commandText, parms);
return dt.Rows.Count > 0 ? dt.Rows[0] : null;
}
/// <summary>
/// 执行SQL语句,返回结果集中的第一行
/// </summary>
/// <param name="connectionString">数据库连接字符串</param>
/// <param name="commandType">命令类型(存储过程,命令文本, 其它.)</param>
/// <param name="commandText">SQL语句或存储过程名称</param>
/// <param name="parms">查询参数</param>
/// <returns>返回结果集中的第一个数据表</returns>
public static DataRow ExecuteDataRow(string connectionString, CommandType commandType, string commandText, params SqlParameter[] parms)
{
DataTable dt = ExecuteDataTable(connectionString, commandType, commandText, parms);
return dt.Rows.Count > 0 ? dt.Rows[0] : null;
}
/// <summary>
/// 执行SQL语句,返回结果集中的第一行
/// </summary>
/// <param name="connection">数据库连接</param>
/// <param name="commandType">命令类型(存储过程,命令文本, 其它.)</param>
/// <param name="commandText">SQL语句或存储过程名称</param>
/// <param name="parms">查询参数</param>
/// <returns>返回结果集中的第一个数据表</returns>
public static DataRow ExecuteDataRow(SqlConnection connection, CommandType commandType, string commandText, params SqlParameter[] parms)
{
DataTable dt = ExecuteDataTable(connection, commandType, commandText, parms);
return dt.Rows.Count > 0 ? dt.Rows[0] : null;
}
#endregion
#region ExecuteDataTable
/// <summary>
/// 执行SQL语句,返回结果集中的第一个数据表
/// </summary>
/// <param name="sql">SQL语句或存储过程名称</param>
/// <returns>返回结果集中的第一个数据表</returns>
public static DataTable ExecuteDataTable(string sql)
{
return ExecuteDataset(sql).Tables[0];
}
/// <summary>
/// 执行SQL语句,返回结果集中的第一个数据表
/// </summary>
/// <param name="sql">SQL语句或存储过程名称</param>
/// <param name="para">查询参数</param>
/// <returns>返回结果集中的第一个数据表</returns>
public static DataTable ExecuteDataTable(string sql,string[,] para)
{
return ExecuteDataset(sql,para).Tables[0];
}
/// <summary>
/// 执行SQL语句,返回结果集中的第一个数据表
/// </summary>
/// <param name="conn">数据库连接字符串</param>
/// <param name="sql">SQL语句或存储过程名称</param>
/// <param name="type">执行的是储存过程还是sql语句</param>
/// <returns>返回结果集中的第一个数据表</returns>
public static DataTable ExecuteDataTable(string conn,string sql, CommandType type)
{
return ExecuteDataset(conn,sql, type).Tables[0];
}
/// <summary>
/// 执行SQL语句,返回结果集中的第一个数据表
/// </summary>
/// <param name="conn">数据库连接字符串</param>
/// <param name="sql">SQL语句或存储过程名称</param>
/// <returns>返回结果集中的第一个数据表</returns>
public static DataTable ExecuteDataTable(string conn, string sql)
{
return ExecuteDataset(conn, sql).Tables[0];
}
/// <summary>
/// 执行SQL语句,返回结果集中的第一个数据表
/// </summary>
/// <param name="conn">数据库连接字符串</param>
/// <param name="sql">SQL语句或存储过程名称</param>
/// <param name="para">查询参数</param>
/// <returns>返回结果集中的第一个数据表</returns>
public static DataTable ExecuteDataTable(string conn, string sql,string[,] para)
{
return ExecuteDataset(conn, sql, para).Tables[0];
}
/// <summary>
/// 执行SQL语句,返回结果集中的第一个数据表
/// </summary>
/// <param name="connectionString">数据库连接字符串</param>
/// <param name="commandType">命令类型(存储过程,命令文本, 其它.)</param>
/// <param name="commandText">SQL语句或存储过程名称</param>
/// <param name="parms">查询参数</param>
/// <returns>返回结果集中的第一个数据表</returns>
public static DataTable ExecuteDataTable(string connectionString, CommandType commandType, string commandText, string[,] parms)
{
return ExecuteDataset(connectionString, commandType, commandText, parms).Tables[0];
}
/// <summary>
/// 执行SQL语句,返回结果集中的第一个数据表
/// </summary>
/// <param name="connection">数据库连接</param>
/// <param name="commandType">命令类型(存储过程,命令文本, 其它.)</param>
/// <param name="commandText">SQL语句或存储过程名称</param>
/// <param name="parms">查询参数</param>
/// <returns>返回结果集中的第一个数据表</returns>
public static DataTable ExecuteDataTable(SqlConnection connection, CommandType commandType, string commandText, string[,] parms)
{
return ExecuteDataset(connection, commandType, commandText, parms).Tables[0];
}
/// <summary>
/// 执行SQL语句,返回结果集中的第一个数据表
/// </summary>
/// <param name="connectionString">数据库连接字符串</param>
/// <param name="commandType">命令类型(存储过程,命令文本, 其它.)</param>
/// <param name="commandText">SQL语句或存储过程名称</param>
/// <param name="parms">查询参数</param>
/// <returns>返回结果集中的第一个数据表</returns>
public static DataTable ExecuteDataTable(string connectionString, CommandType commandType, string commandText, params SqlParameter[] parms)
{
return ExecuteDataset(connectionString, commandType, commandText, parms).Tables[0];
}
/// <summary>
/// 执行SQL语句,返回结果集中的第一个数据表
/// </summary>
/// <param name="connection">数据库连接</param>
/// <param name="commandType">命令类型(存储过程,命令文本, 其它.)</param>
/// <param name="commandText">SQL语句或存储过程名称</param>
/// <param name="parms">查询参数</param>
/// <returns>返回结果集中的第一个数据表</returns>
public static DataTable ExecuteDataTable(SqlConnection connection, CommandType commandType, string commandText, params SqlParameter[] parms)
{
return ExecuteDataset(connection, commandType, commandText, parms).Tables[0];
}
#endregion
#region ExecuteDataset方法
/// <summary>
/// 执行指定数据库连接字符串的命令,返回DataSet.
/// </summary>
/// <remarks>
/// 示例:
/// DataSet ds = ExecuteDataset(sql);
/// </remarks>
/// <param name="commandText">存储过程名称或T-SQL语句</param>
/// <returns>返回一个包含结果集的DataSet</returns>
public static DataSet ExecuteDataset(string commandText)
{
// ExecuteDataset #1
return ExecuteDataset(cStr, CommandType.Text, commandText, (SqlParameter[])null);
}
/// <summary>
/// 执行指定数据库连接字符串的命令,返回DataSet.
/// </summary>
/// <remarks>
/// 示例:
/// DataSet ds = ExecuteDataset(sql, para);
/// </remarks>
/// <param name="commandText">存储过程名称或T-SQL语句</param>
/// <param name="para">
/// <para>和命令相关联的string2维数组,如果没有参数为'null'</para>
/// <para>1.string[,] para={{"参数名","参数值","获取或设置一个值，该值指示参数是只可输入、只可输出、双向还是存储过程返回值参数"}}; Input,InputOutput,Output,ReturnValue</para>
/// <para>2.string[,] para={{"参数名","参数值"}}; 少的这个为默认Input只可输入</para>
/// </param>
/// <returns>返回一个包含结果集的DataSet</returns>
public static DataSet ExecuteDataset(string commandText, string[,] para)
{
using (SqlConnection connection = new SqlConnection(cStr))
{
//IntelnetConnState.HasNetworkAlive();
connection.Open();
return ExecuteDataset(connection, CommandType.Text, commandText, para);
}
}
/// <summary>
/// 执行指定数据库连接字符串的命令,返回DataSet.
/// </summary>
/// <remarks>
/// 示例:
/// DataSet ds = ExecuteDataset(connString, CommandType.StoredProcedure, "GetOrders");
/// </remarks>
/// <param name="connectionString">一个有效的数据库连接字符串</param>
/// <param name="commandType">命令类型(存储过程,命令文本或其它)</param>
/// <param name="commandText">存储过程名称或T-SQL语句</param>
/// <returns>返回一个包含结果集的DataSet</returns>
public static DataSet ExecuteDataset(string connectionString, CommandType commandType, string commandText)
{
// ExecuteDataset #1
return ExecuteDataset(connectionString, commandType, commandText, (SqlParameter[])null);
}
/// <summary>
/// 执行指定数据库连接字符串的命令,返回DataSet.
/// </summary>
/// <remarks>
/// 示例:
/// DataSet ds = ExecuteDataset(connString, CommandType.StoredProcedure, "GetOrders", new SqlParameter("@prodid", 24));
/// </remarks>
/// <param name="connectionString">一个有效的数据库连接字符串</param>
/// <param name="commandType">命令类型(存储过程,命令文本或其它)</param>
/// <param name="commandText">存储过程名称或T-SQL语句</param>
/// <param name="commandParameters">SqlParamters参数数组</param>
/// <returns>返回一个包含结果集的DataSet</returns>
public static DataSet ExecuteDataset(string connectionString, CommandType commandType, string commandText, params SqlParameter[] commandParameters)
{
// ExecuteDataset #2
if (connectionString == null || connectionString.Length == 0) throw new ArgumentNullException("connectionString");
using (SqlConnection connection = new SqlConnection(connectionString))
{
//IntelnetConnState.HasNetworkAlive();
connection.Open();
return ExecuteDataset(connection, commandType, commandText, commandParameters);
}
}
/// <summary>
/// 执行指定数据库连接对象的命令,指定存储过程参数,返回DataSet.
/// </summary>
/// <remarks>
/// 示例:
/// DataSet ds = ExecuteDataset(conn, CommandType.StoredProcedure, "GetOrders", para);
/// </remarks>
/// <param name="connection">一个有效的数据库连接对象</param>
/// <param name="commandText">存储过程名或T-SQL语句</param>
/// <param name="para">
/// <para>和命令相关联的string2维数组,如果没有参数为'null'</para>
/// <para>1.string[,] para={{"参数名","参数值","获取或设置一个值，该值指示参数是只可输入、只可输出、双向还是存储过程返回值参数"}}; Input,InputOutput,Output,ReturnValue</para>
/// <para>2.string[,] para={{"参数名","参数值"}}; 少的这个为默认Input只可输入</para>
/// </param>
/// <returns>返回一个包含结果集的DataSet</returns>
public static DataSet ExecuteDataset(SqlConnection connection, string commandText, string[,] para)
{
return ExecuteDataset(connection, commandText, para);
}
/// <summary>
/// 执行指定数据库连接对象的命令,指定存储过程参数,返回DataSet.
/// </summary>
/// <remarks>
/// 示例:
/// DataSet ds = ExecuteDataset(conn, CommandType.StoredProcedure, "GetOrders", para);
/// </remarks>
/// <param name="connection">一个有效的数据库连接对象</param>
/// <param name="commandType">命令类型 (存储过程,命令文本或其它)</param>
/// <param name="commandText">存储过程名或T-SQL语句</param>
/// <param name="para">
/// <para>和命令相关联的string2维数组,如果没有参数为'null'</para>
/// <para>1.string[,] para={{"参数名","参数值","获取或设置一个值，该值指示参数是只可输入、只可输出、双向还是存储过程返回值参数"}}; Input,InputOutput,Output,ReturnValue</para>
/// <para>2.string[,] para={{"参数名","参数值"}}; 少的这个为默认Input只可输入</para>
/// </param>
/// <returns>返回一个包含结果集的DataSet</returns>
public static DataSet ExecuteDataset(SqlConnection connection, CommandType commandType, string commandText, string[,] para)
{
// ExecuteDataset #5
if (connection == null) throw new ArgumentNullException("connection");
// 预处理
SqlCommand cmd = new SqlCommand();
cmd.CommandTimeout = CommandTimeOut;
bool mustCloseConnection = false;
PrepareCommand(cmd, connection, (SqlTransaction)null, commandType, commandText, para, out mustCloseConnection);
// 创建SqlDataAdapter和DataSet.
using (SqlDataAdapter da = new SqlDataAdapter(cmd))
{
DataSet ds = new DataSet();
// 填充DataSet.
da.Fill(ds);
cmd.Parameters.Clear();
if (mustCloseConnection)
connection.Close();
return ds;
}
}
/// <summary>
/// 执行指定数据库连接字符串的命令,返回DataSet.
/// </summary>
/// <remarks>
/// 示例:
/// DataSet ds = ExecuteDataset(connString, CommandType.StoredProcedure, "GetOrders", para);
/// </remarks>
/// <param name="connectionString">一个有效的数据库连接字符串</param>
/// <param name="commandType">命令类型(存储过程,命令文本或其它)</param>
/// <param name="commandText">存储过程名称或T-SQL语句</param>
/// <param name="para">
/// <para>和命令相关联的string2维数组,如果没有参数为'null'</para>
/// <para>1.string[,] para={{"参数名","参数值","获取或设置一个值，该值指示参数是只可输入、只可输出、双向还是存储过程返回值参数"}}; Input,InputOutput,Output,ReturnValue</para>
/// <para>2.string[,] para={{"参数名","参数值"}}; 少的这个为默认Input只可输入</para>
/// </param>
/// <returns>返回一个包含结果集的DataSet</returns>
public static DataSet ExecuteDataset(string connectionString, string commandText, string[,] para)
{
return ExecuteDataset(connectionString, CommandType.Text, commandText, para);
}
/// <summary>
/// 执行指定数据库连接字符串的命令,返回DataSet.
/// </summary>
/// <remarks>
/// 示例:
/// DataSet ds = ExecuteDataset(connString, CommandType.StoredProcedure, "GetOrders", para);
/// </remarks>
/// <param name="connectionString">一个有效的数据库连接字符串</param>
/// <param name="commandType">命令类型(存储过程,命令文本或其它)</param>
/// <param name="commandText">存储过程名称或T-SQL语句</param>
/// <param name="para">
/// <para>和命令相关联的string2维数组,如果没有参数为'null'</para>
/// <para>1.string[,] para={{"参数名","参数值","获取或设置一个值，该值指示参数是只可输入、只可输出、双向还是存储过程返回值参数"}}; Input,InputOutput,Output,ReturnValue</para>
/// <para>2.string[,] para={{"参数名","参数值"}}; 少的这个为默认Input只可输入</para>
/// </param>
/// <returns>返回一个包含结果集的DataSet</returns>
public static DataSet ExecuteDataset(string connectionString, CommandType commandType, string commandText, string[,] para)
{
// ExecuteDataset #2
if (connectionString == null || connectionString.Length == 0) throw new ArgumentNullException("connectionString");
using (SqlConnection connection = new SqlConnection(connectionString))
{
//IntelnetConnState.HasNetworkAlive();
connection.Open();
return ExecuteDataset(connection, commandType, commandText, para);
}
}
/// <summary>
/// 执行指定数据库连接字符串的命令,直接提供参数值,返回DataSet.
/// </summary>
/// <remarks>
/// 此方法不提供访问存储过程输出参数和返回值.
/// 示例:
/// DataSet ds = ExecuteDataset(connString, "GetOrders", 24, 36);
/// </remarks>
/// <param name="connectionString">一个有效的数据库连接字符串</param>
/// <param name="spName">存储过程名</param>
/// <param name="parameterValues">分配给存储过程输入参数的对象数组</param>
/// <returns>返回一个包含结果集的DataSet</returns>
public static DataSet ExecuteDataset(string connectionString, string spName, params object[] parameterValues)
{
// ExecuteDataset #3
if (connectionString == null || connectionString.Length == 0) throw new ArgumentNullException("connectionString");
if (spName == null || spName.Length == 0) throw new ArgumentNullException("spName");
if ((parameterValues != null) && (parameterValues.Length > 0))
{
// 从缓存中检索存储过程参数
SqlParameter[] commandParameters = GetSpParameterSet(connectionString, spName);
// 给存储过程参数分配值
AssignParameterValues(commandParameters, parameterValues);
return ExecuteDataset(connectionString, CommandType.StoredProcedure, spName, commandParameters);
}
else
{
return ExecuteDataset(connectionString, CommandType.StoredProcedure, spName);
}
}
/// <summary>
/// 执行指定数据库连接字符串的命令,直接提供参数值,返回DataSet.
/// </summary>
/// <remarks>
/// 此方法不提供访问存储过程输出参数和返回值.
/// 示例:
/// DataSet ds = ExecuteDataset(connString, "GetOrders", 24, 36);
/// </remarks>
/// <param name="connectionString">一个有效的数据库连接字符串</param>
/// <param name="spName">存储过程名</param>
/// <param name="parameterValues">分配给存储过程输入参数的对象数组</param>
/// <param name="type">执行的是储存过程还是sql语句</param>
/// <returns>返回一个包含结果集的DataSet</returns>
public static DataSet ExecuteDataset(string connectionString, string spName, CommandType type, params object[] parameterValues)
{
// ExecuteDataset #3
if (connectionString == null || connectionString.Length == 0) throw new ArgumentNullException("connectionString");
if (spName == null || spName.Length == 0) throw new ArgumentNullException("spName");
if ((parameterValues != null) && (parameterValues.Length > 0))
{
// 从缓存中检索存储过程参数
SqlParameter[] commandParameters = GetSpParameterSet(connectionString, spName);
// 给存储过程参数分配值
AssignParameterValues(commandParameters, parameterValues);
return ExecuteDataset(connectionString, type, spName, commandParameters);
}
else
{
return ExecuteDataset(connectionString, type, spName);
}
}
/// <summary>
/// 执行指定数据库连接对象的命令,返回DataSet.
/// </summary>
/// <remarks>
/// 示例:
/// DataSet ds = ExecuteDataset(conn, CommandType.StoredProcedure, "GetOrders");
/// </remarks>
/// <param name="connection">一个有效的数据库连接对象</param>
/// <param name="commandType">命令类型 (存储过程,命令文本或其它)</param>
/// <param name="commandText">存储过程名或T-SQL语句</param>
/// <returns>返回一个包含结果集的DataSet</returns>
public static DataSet ExecuteDataset(SqlConnection connection, CommandType commandType, string commandText)
{
// ExecuteDataset #4
return ExecuteDataset(connection, commandType, commandText, (SqlParameter[])null);
}
/// <summary>
/// 执行指定数据库连接对象的命令,指定存储过程参数,返回DataSet.
/// </summary>
/// <remarks>
/// 示例:
/// DataSet ds = ExecuteDataset(conn, CommandType.StoredProcedure, "GetOrders", new SqlParameter("@prodid", 24));
/// </remarks>
/// <param name="connection">一个有效的数据库连接对象</param>
/// <param name="commandType">命令类型 (存储过程,命令文本或其它)</param>
/// <param name="commandText">存储过程名或T-SQL语句</param>
/// <param name="commandParameters">SqlParamter参数数组</param>
/// <returns>返回一个包含结果集的DataSet</returns>
public static DataSet ExecuteDataset(SqlConnection connection, CommandType commandType, string commandText, params SqlParameter[] commandParameters)
{
// ExecuteDataset #5
if (connection == null) throw new ArgumentNullException("connection");
// 预处理
SqlCommand cmd = new SqlCommand();
cmd.CommandTimeout = CommandTimeOut;
bool mustCloseConnection = false;
PrepareCommand(cmd, connection, (SqlTransaction)null, commandType, commandText, commandParameters, out mustCloseConnection);
// 创建SqlDataAdapter和DataSet.
using (SqlDataAdapter da = new SqlDataAdapter(cmd))
{
DataSet ds = new DataSet();
// 填充DataSet.
da.Fill(ds);
cmd.Parameters.Clear();
if (mustCloseConnection)
connection.Close();
return ds;
}
}
/// <summary>
/// 执行指定数据库连接对象的命令,指定参数值,返回DataSet.
/// </summary>
/// <remarks>
/// 此方法不提供访问存储过程输入参数和返回值.
/// 示例.:
/// DataSet ds = ExecuteDataset(conn, "GetOrders", 24, 36);
/// </remarks>
/// <param name="connection">一个有效的数据库连接对象</param>
/// <param name="spName">存储过程名</param>
/// <param name="parameterValues">分配给存储过程输入参数的对象数组</param>
/// <returns>返回一个包含结果集的DataSet</returns>
public static DataSet ExecuteDataset(SqlConnection connection, string spName, params object[] parameterValues)
{
// ExecuteDataset #6
if (connection == null) throw new ArgumentNullException("connection");
if (spName == null || spName.Length == 0) throw new ArgumentNullException("spName");
if ((parameterValues != null) && (parameterValues.Length > 0))
{
// 比缓存中加载存储过程参数
SqlParameter[] commandParameters = GetSpParameterSet(connection, spName);
// 给存储过程参数分配值
AssignParameterValues(commandParameters, parameterValues);
return ExecuteDataset(connection, CommandType.StoredProcedure, spName, commandParameters);
}
else
{
return ExecuteDataset(connection, CommandType.StoredProcedure, spName);
}
}
/// <summary>
/// 执行指定事务的命令,返回DataSet.
/// </summary>
/// <remarks>
/// 示例:
/// DataSet ds = ExecuteDataset(trans, CommandType.StoredProcedure, "GetOrders");
/// </remarks>
/// <param name="transaction">事务</param>
/// <param name="commandType">命令类型 (存储过程,命令文本或其它)</param>
/// <param name="commandText">存储过程名或T-SQL语句</param>
/// <returns>返回一个包含结果集的DataSet</returns>
public static DataSet ExecuteDataset(SqlTransaction transaction, string commandText)
{
// ExecuteDataset #7
return ExecuteDataset(transaction, CommandType.Text, commandText, (SqlParameter[])null);
}
/// <summary>
/// 执行指定事务的命令,返回DataSet.
/// </summary>
/// <remarks>
/// 示例:
/// DataSet ds = ExecuteDataset(trans, CommandType.StoredProcedure, "GetOrders");
/// </remarks>
/// <param name="transaction">事务</param>
/// <param name="commandType">命令类型 (存储过程,命令文本或其它)</param>
/// <param name="commandText">存储过程名或T-SQL语句</param>
/// <returns>返回一个包含结果集的DataSet</returns>
public static DataSet ExecuteDataset(SqlTransaction transaction, string commandText, string[,] para)
{
// ExecuteDataset #7
return ExecuteDataset(transaction, CommandType.Text, commandText, para);
}
/// <summary>
/// 执行指定事务的命令,返回DataSet.
/// </summary>
/// <remarks>
/// 示例:
/// DataSet ds = ExecuteDataset(trans, CommandType.StoredProcedure, "GetOrders");
/// </remarks>
/// <param name="transaction">事务</param>
/// <param name="commandType">命令类型 (存储过程,命令文本或其它)</param>
/// <param name="commandText">存储过程名或T-SQL语句</param>
/// <returns>返回一个包含结果集的DataSet</returns>
public static DataSet ExecuteDataset(SqlTransaction transaction, CommandType commandType, string commandText)
{
// ExecuteDataset #7
return ExecuteDataset(transaction, commandType, commandText, (SqlParameter[])null);
}
/// <summary>
/// 执行指定事务的命令,指定参数,返回DataSet.
/// </summary>
/// <remarks>
/// 示例:
/// DataSet ds = ExecuteDataset(trans, CommandType.StoredProcedure, "GetOrders", new SqlParameter("@prodid", 24));
/// </remarks>
/// <param name="transaction">事务</param>
/// <param name="commandType">命令类型 (存储过程,命令文本或其它)</param>
/// <param name="commandText">存储过程名或T-SQL语句</param>
/// <param name="commandParameters">SqlParamter参数数组</param>
/// <returns>返回一个包含结果集的DataSet</returns>
public static DataSet ExecuteDataset(SqlTransaction transaction, CommandType commandType, string commandText, params SqlParameter[] commandParameters)
{
// ExecuteDataset #8
if (transaction == null) throw new ArgumentNullException("transaction");
if (transaction != null && transaction.Connection == null) throw new ArgumentException("The transaction was rollbacked or commited, please provide an open transaction.", "transaction");
// 预处理
SqlCommand cmd = new SqlCommand();
cmd.CommandTimeout = CommandTimeOut;
bool mustCloseConnection = false;
PrepareCommand(cmd, transaction.Connection, transaction, commandType, commandText, commandParameters, out mustCloseConnection);
// 创建 DataAdapter & DataSet
using (SqlDataAdapter da = new SqlDataAdapter(cmd))
{
DataSet ds = new DataSet();
da.Fill(ds);
cmd.Parameters.Clear();
return ds;
}
}
/// <summary>
/// 执行指定事务的命令,指定参数,返回DataSet.
/// </summary>
/// <remarks>
/// 示例:
/// DataSet ds = ExecuteDataset(trans, CommandType.StoredProcedure, "GetOrders", para);
/// </remarks>
/// <param name="transaction">事务</param>
/// <param name="commandType">命令类型 (存储过程,命令文本或其它)</param>
/// <param name="commandText">存储过程名或T-SQL语句</param>
/// <param name="para">
/// <para>和命令相关联的string2维数组,如果没有参数为'null'</para>
/// <para>1.string[,] para={{"参数名","参数值","获取或设置一个值，该值指示参数是只可输入、只可输出、双向还是存储过程返回值参数"}}; Input,InputOutput,Output,ReturnValue</para>
/// <para>2.string[,] para={{"参数名","参数值"}}; 少的这个为默认Input只可输入</para>
/// </param>
/// <returns>返回一个包含结果集的DataSet</returns>
public static DataSet ExecuteDataset(SqlTransaction transaction, CommandType commandType, string commandText, string[,] para)
{
// ExecuteDataset #8
if (transaction == null) throw new ArgumentNullException("transaction");
if (transaction != null && transaction.Connection == null) throw new ArgumentException("The transaction was rollbacked or commited, please provide an open transaction.", "transaction");
// 预处理
SqlCommand cmd = new SqlCommand();
cmd.CommandTimeout = CommandTimeOut;
bool mustCloseConnection = false;
PrepareCommand(cmd, transaction.Connection, transaction, commandType, commandText, para, out mustCloseConnection);
// 创建 DataAdapter & DataSet
using (SqlDataAdapter da = new SqlDataAdapter(cmd))
{
DataSet ds = new DataSet();
da.Fill(ds);
cmd.Parameters.Clear();
return ds;
}
}
/// <summary>
/// 执行指定事务的命令,指定参数值,返回DataSet.
/// </summary>
/// <remarks>
/// 此方法不提供访问存储过程输入参数和返回值.
/// 示例.:
/// DataSet ds = ExecuteDataset(trans, "GetOrders", 24, 36);
/// </remarks>
/// <param name="transaction">事务</param>
/// <param name="spName">存储过程名</param>
/// <param name="parameterValues">分配给存储过程输入参数的对象数组</param>
/// <returns>返回一个包含结果集的DataSet</returns>
public static DataSet ExecuteDataset(SqlTransaction transaction, string spName, params object[] parameterValues)
{
// ExecuteDataset #9
if (transaction == null) throw new ArgumentNullException("transaction");
if (transaction != null && transaction.Connection == null) throw new ArgumentException("The transaction was rollbacked or commited, please provide an open transaction.", "transaction");
if (spName == null || spName.Length == 0) throw new ArgumentNullException("spName");
if ((parameterValues != null) && (parameterValues.Length > 0))
{
// 从缓存中加载存储过程参数
SqlParameter[] commandParameters = GetSpParameterSet(transaction.Connection, spName);
// 给存储过程参数分配值
AssignParameterValues(commandParameters, parameterValues);
return ExecuteDataset(transaction, CommandType.StoredProcedure, spName, commandParameters);
}
else
{
return ExecuteDataset(transaction, CommandType.StoredProcedure, spName);
}
}
#endregion ExecuteDataset方法
#region ExecuteReader 数据阅读器
/// <summary>
/// 枚举,标识数据库连接是由SqlHelper提供还是由调用者提供
/// </summary>
private enum SqlConnectionOwnership
{
/// <summary>由SqlHelper提供连接</summary>
Internal,
/// <summary>由调用者提供连接</summary>
External
}
/// <summary>
/// 执行指定数据库连接对象的数据阅读器.
/// </summary>
/// <remarks>
/// 如果是SqlHelper打开连接,当连接关闭DataReader也将关闭.
/// 如果是调用都打开连接,DataReader由调用都管理.
/// </remarks>
/// <param name="connection">一个有效的数据库连接对象</param>
/// <param name="transaction">一个有效的事务,或者为 'null'</param>
/// <param name="commandType">命令类型 (存储过程,命令文本或其它)</param>
/// <param name="commandText">存储过程名或T-SQL语句</param>
/// <param name="commandParameters">SqlParameters参数数组,如果没有参数则为'null'</param>
/// <param name="connectionOwnership">标识数据库连接对象是由调用者提供还是由SqlHelper提供</param>
/// <returns>返回包含结果集的SqlDataReader</returns>
private static SqlDataReader ExecuteReader(SqlConnection connection, SqlTransaction transaction, CommandType commandType, string commandText, SqlParameter[] commandParameters, SqlConnectionOwnership connectionOwnership)
{
// ExecuteReader #1
if (connection == null) throw new ArgumentNullException("connection");
bool mustCloseConnection = false;
// 创建命令
SqlCommand cmd = new SqlCommand();
cmd.CommandTimeout = CommandTimeOut;
try
{
PrepareCommand(cmd, connection, transaction, commandType, commandText, commandParameters, out mustCloseConnection);
// 创建数据阅读器
SqlDataReader dataReader;
if (connectionOwnership == SqlConnectionOwnership.External)
{
dataReader = cmd.ExecuteReader();
}
else
{
dataReader = cmd.ExecuteReader(CommandBehavior.CloseConnection);
}
// 清除参数,以便再次使用..
// HACK: There is a problem here, the output parameter values are fletched
// when the reader is closed, so if the parameters are detached from the command
// then the SqlReader can磘 set its values.
// When this happen, the parameters can磘 be used again in other command.
bool canClear = true;
foreach (SqlParameter commandParameter in cmd.Parameters)
{
if (commandParameter.Direction != ParameterDirection.Input)
canClear = false;
}
if (canClear)
{
cmd.Parameters.Clear();
}
return dataReader;
}
catch
{
if (mustCloseConnection)
connection.Close();
throw;
}
}
/// <summary>
/// 执行指定数据库连接对象的数据阅读器.
/// </summary>
/// <remarks>
/// 如果是SqlHelper打开连接,当连接关闭DataReader也将关闭.
/// 如果是调用都打开连接,DataReader由调用都管理.
/// </remarks>
/// <param name="connection">一个有效的数据库连接对象</param>
/// <param name="transaction">一个有效的事务,或者为 'null'</param>
/// <param name="commandType">命令类型 (存储过程,命令文本或其它)</param>
/// <param name="commandText">存储过程名或T-SQL语句</param>
/// <param name="para">
/// <para>和命令相关联的string2维数组,如果没有参数为'null'</para>
/// <para>1.string[,] para={{"参数名","参数值","获取或设置一个值，该值指示参数是只可输入、只可输出、双向还是存储过程返回值参数"}}; Input,InputOutput,Output,ReturnValue</para>
/// <para>2.string[,] para={{"参数名","参数值"}}; 少的这个为默认Input只可输入</para>
/// </param>
/// <param name="connectionOwnership">标识数据库连接对象是由调用者提供还是由SqlHelper提供</param>
/// <returns>返回包含结果集的SqlDataReader</returns>
private static SqlDataReader ExecuteReader(SqlConnection connection, SqlTransaction transaction, CommandType commandType, string commandText, string[,] para, SqlConnectionOwnership connectionOwnership)
{
// ExecuteReader #1
if (connection == null) throw new ArgumentNullException("connection");
bool mustCloseConnection = false;
// 创建命令
SqlCommand cmd = new SqlCommand();
cmd.CommandTimeout = CommandTimeOut;
try
{
PrepareCommand(cmd, connection, transaction, commandType, commandText, para, out mustCloseConnection);
// 创建数据阅读器
SqlDataReader dataReader;
if (connectionOwnership == SqlConnectionOwnership.External)
{
dataReader = cmd.ExecuteReader();
}
else
{
dataReader = cmd.ExecuteReader(CommandBehavior.CloseConnection);
}
// 清除参数,以便再次使用..
// HACK: There is a problem here, the output parameter values are fletched
// when the reader is closed, so if the parameters are detached from the command
// then the SqlReader can磘 set its values.
// When this happen, the parameters can磘 be used again in other command.
bool canClear = true;
foreach (SqlParameter commandParameter in cmd.Parameters)
{
if (commandParameter.Direction != ParameterDirection.Input)
canClear = false;
}
if (canClear)
{
cmd.Parameters.Clear();
}
return dataReader;
}
catch
{
if (mustCloseConnection)
connection.Close();
throw;
}
}
/// <summary>
/// 执行指定数据库连接字符串的数据阅读器.
/// </summary>
/// <remarks>
/// 示例:
/// SqlDataReader dr = ExecuteReader(connString, sql);
/// </remarks>
/// <param name="connectionString">一个有效的数据库连接字符串</param>
/// <param name="commandText">存储过程名或T-SQL语句</param>
/// <returns>返回包含结果集的SqlDataReader</returns>
public static SqlDataReader ExecuteReader(string connectionString, string commandText)
{
// ExecuteReader #2
return ExecuteReader(connectionString, CommandType.Text, commandText, (SqlParameter[])null);
}
/// <summary>
/// 执行指定数据库连接字符串的数据阅读器.
/// </summary>
/// <remarks>
/// 示例:
/// SqlDataReader dr = ExecuteReader(sql);
/// </remarks>
/// <param name="commandText">存储过程名或T-SQL语句</param>
/// <returns>返回包含结果集的SqlDataReader</returns>
public static SqlDataReader ExecuteReader(string commandText)
{
// ExecuteReader #2
return ExecuteReader(cStr, CommandType.Text, commandText, (SqlParameter[])null);
}
/// <summary>
/// 执行指定数据库连接字符串的数据阅读器.
/// </summary>
/// <remarks>
/// 示例:
/// SqlDataReader dr = ExecuteReader(connString, sql);
/// </remarks>
/// <param name="connectionString">一个有效的数据库连接字符串</param>
/// <param name="commandType">命令类型 (存储过程,命令文本或其它)</param>
/// <param name="commandText">存储过程名或T-SQL语句</param>
/// <returns>返回包含结果集的SqlDataReader</returns>
public static SqlDataReader ExecuteReader(string connectionString, string commandText, string[,] para)
{
// ExecuteReader #2
return ExecuteReader(connectionString, CommandType.Text, commandText, para);
}
/// <summary>
/// 执行指定数据库连接字符串的数据阅读器.
/// </summary>
/// <remarks>
/// 示例:
/// SqlDataReader dr = ExecuteReader(connString, sql);
/// </remarks>
/// <param name="commandType">命令类型 (存储过程,命令文本或其它)</param>
/// <param name="commandText">存储过程名或T-SQL语句</param>
/// <returns>返回包含结果集的SqlDataReader</returns>
public static SqlDataReader ExecuteReader( string commandText, string[,] para)
{
// ExecuteReader #2
return ExecuteReader(cStr, CommandType.Text, commandText, para);
}
/// <summary>
/// 执行指定数据库连接字符串的数据阅读器.
/// </summary>
/// <remarks>
/// 示例:
/// SqlDataReader dr = ExecuteReader(connString, CommandType.StoredProcedure, "GetOrders");
/// </remarks>
/// <param name="connectionString">一个有效的数据库连接字符串</param>
/// <param name="commandType">命令类型 (存储过程,命令文本或其它)</param>
/// <param name="commandText">存储过程名或T-SQL语句</param>
/// <returns>返回包含结果集的SqlDataReader</returns>
public static SqlDataReader ExecuteReader( CommandType commandType, string commandText)
{
// ExecuteReader #2
return ExecuteReader(cStr, commandType, commandText, (SqlParameter[])null);
}
/// <summary>
/// 执行指定数据库连接字符串的数据阅读器.
/// </summary>
/// <remarks>
/// 示例:
/// SqlDataReader dr = ExecuteReader(connString, CommandType.StoredProcedure, "GetOrders");
/// </remarks>
/// <param name="connectionString">一个有效的数据库连接字符串</param>
/// <param name="commandType">命令类型 (存储过程,命令文本或其它)</param>
/// <param name="commandText">存储过程名或T-SQL语句</param>
/// <returns>返回包含结果集的SqlDataReader</returns>
public static SqlDataReader ExecuteReader(string connectionString, CommandType commandType, string commandText)
{
// ExecuteReader #2
return ExecuteReader(connectionString, commandType, commandText, (SqlParameter[])null);
}
/// <summary>
/// 执行指定数据库连接字符串的数据阅读器,指定参数.
/// </summary>
/// <remarks>
/// 示例:
/// SqlDataReader dr = ExecuteReader(connString, CommandType.StoredProcedure, "GetOrders", new SqlParameter("@prodid", 24));
/// </remarks>
/// <param name="connectionString">一个有效的数据库连接字符串</param>
/// <param name="commandType">命令类型 (存储过程,命令文本或其它)</param>
/// <param name="commandText">存储过程名或T-SQL语句</param>
/// <param name="commandParameters">SqlParamter参数数组(new SqlParameter("@prodid", 24))</param>
/// <returns>返回包含结果集的SqlDataReader</returns>
public static SqlDataReader ExecuteReader(string connectionString, CommandType commandType, string commandText, params SqlParameter[] commandParameters)
{
// ExecuteReader #3
if (connectionString == null || connectionString.Length == 0) throw new ArgumentNullException("connectionString");
SqlConnection connection = null;
try
{
//IntelnetConnState.HasNetworkAlive();
connection = new SqlConnection(connectionString);
connection.Open();
return ExecuteReader(connection, null, commandType, commandText, commandParameters, SqlConnectionOwnership.Internal);
}
catch
{
if (connection != null) connection.Close();
throw;
}
}
/// <summary>
/// 执行指定数据库连接字符串的数据阅读器,指定参数.
/// </summary>
/// <remarks>
/// 示例:
/// SqlDataReader dr = ExecuteReader( CommandType.StoredProcedure, "GetOrders", para);
/// </remarks>
/// <param name="commandType">命令类型 (存储过程,命令文本或其它)</param>
/// <param name="commandText">存储过程名或T-SQL语句</param>
/// <param name="para">
/// <para>和命令相关联的string2维数组,如果没有参数为'null'</para>
/// <para>1.string[,] para={{"参数名","参数值","获取或设置一个值，该值指示参数是只可输入、只可输出、双向还是存储过程返回值参数"}}; Input,InputOutput,Output,ReturnValue</para>
/// <para>2.string[,] para={{"参数名","参数值"}}; 少的这个为默认Input只可输入</para>
/// </param>
/// <returns>返回包含结果集的SqlDataReader</returns>
public static SqlDataReader ExecuteReader(CommandType commandType, string commandText, string[,] para)
{
// ExecuteReader #3
if (cStr == null || cStr.Length == 0) throw new ArgumentNullException("connectionString");
SqlConnection connection = null;
try
{
//IntelnetConnState.HasNetworkAlive();
connection = new SqlConnection(cStr);
connection.Open();
return ExecuteReader(connection, null, commandType, commandText, para, SqlConnectionOwnership.Internal);
}
catch
{
if (connection != null) connection.Close();
throw;
}
}
/// <summary>
/// 执行指定数据库连接字符串的数据阅读器,指定参数.
/// </summary>
/// <remarks>
/// 示例:
/// SqlDataReader dr = ExecuteReader(connString, CommandType.StoredProcedure, "GetOrders", para);
/// </remarks>
/// <param name="connectionString">一个有效的数据库连接字符串</param>
/// <param name="commandType">命令类型 (存储过程,命令文本或其它)</param>
/// <param name="commandText">存储过程名或T-SQL语句</param>
/// <param name="para">
/// <para>和命令相关联的string2维数组,如果没有参数为'null'</para>
/// <para>1.string[,] para={{"参数名","参数值","获取或设置一个值，该值指示参数是只可输入、只可输出、双向还是存储过程返回值参数"}}; Input,InputOutput,Output,ReturnValue</para>
/// <para>2.string[,] para={{"参数名","参数值"}}; 少的这个为默认Input只可输入</para>
/// </param>
/// <returns>返回包含结果集的SqlDataReader</returns>
public static SqlDataReader ExecuteReader(string connectionString, CommandType commandType, string commandText, string[,] para)
{
// ExecuteReader #3
if (connectionString == null || connectionString.Length == 0) throw new ArgumentNullException("connectionString");
SqlConnection connection = null;
try
{
//IntelnetConnState.HasNetworkAlive();
connection = new SqlConnection(connectionString);
connection.Open();
return ExecuteReader(connection, null, commandType, commandText, para, SqlConnectionOwnership.Internal);
}
catch
{
if (connection != null) connection.Close();
throw;
}
}
/// <summary>
/// 执行指定数据库连接字符串的数据阅读器,指定参数值.
/// </summary>
/// <remarks>
/// 此方法不提供访问存储过程输出参数和返回值参数.
/// 示例:
/// SqlDataReader dr = ExecuteReader(connString, "GetOrders", 24, 36);
/// </remarks>
/// <param name="connectionString">一个有效的数据库连接字符串</param>
/// <param name="spName">存储过程名</param>
/// <param name="parameterValues">分配给存储过程输入参数的对象数组</param>
/// <returns>返回包含结果集的SqlDataReader</returns>
public static SqlDataReader ExecuteReader(string connectionString, string spName, params object[] parameterValues)
{
// ExecuteReader #4
if (connectionString == null || connectionString.Length == 0) throw new ArgumentNullException("connectionString");
if (spName == null || spName.Length == 0) throw new ArgumentNullException("spName");
if ((parameterValues != null) && (parameterValues.Length > 0))
{
SqlParameter[] commandParameters = GetSpParameterSet(connectionString, spName);
AssignParameterValues(commandParameters, parameterValues);
return ExecuteReader(connectionString, CommandType.StoredProcedure, spName, commandParameters);
}
else
{
return ExecuteReader(connectionString, CommandType.Text, spName);
}
}
/// <summary>
/// 执行指定数据库连接对象的数据阅读器.
/// </summary>
/// <remarks>
/// 示例:
/// SqlDataReader dr = ExecuteReader(conn, CommandType.StoredProcedure, "GetOrders");
/// </remarks>
/// <param name="connection">一个有效的数据库连接对象</param>
/// <param name="commandType">命令类型 (存储过程,命令文本或其它)</param>
/// <param name="commandText">存储过程名或T-SQL语句</param>
/// <returns>返回包含结果集的SqlDataReader</returns>
public static SqlDataReader ExecuteReader(SqlConnection connection, CommandType commandType, string commandText)
{
// ExecuteReader #5
return ExecuteReader(connection, commandType, commandText, (SqlParameter[])null);
}
/// <summary>
/// [调用者方式]执行指定数据库连接对象的数据阅读器,指定参数.
/// </summary>
/// <remarks>
/// 示例:
/// SqlDataReader dr = ExecuteReader(conn, CommandType.StoredProcedure, "GetOrders", new SqlParameter("@prodid", 24));
/// </remarks>
/// <param name="connection">一个有效的数据库连接对象</param>
/// <param name="commandType">命令类型 (存储过程,命令文本或其它)</param>
/// <param name="commandText">存储过程名或T-SQL语句</param>
/// <param name="commandParameters">SqlParamter参数数组</param>
/// <returns>返回包含结果集的SqlDataReader</returns>
public static SqlDataReader ExecuteReader(SqlConnection connection, CommandType commandType, string commandText, params SqlParameter[] commandParameters)
{
// ExecuteReader #6
return ExecuteReader(connection, (SqlTransaction)null, commandType, commandText, commandParameters, SqlConnectionOwnership.External);
}
/// <summary>
/// [调用者方式]执行指定数据库连接对象的数据阅读器,指定参数.
/// </summary>
/// <remarks>
/// 示例:
/// SqlDataReader dr = ExecuteReader(conn, CommandType.StoredProcedure, "GetOrders", para);
/// </remarks>
/// <param name="connection">一个有效的数据库连接对象</param>
/// <param name="commandType">命令类型 (存储过程,命令文本或其它)</param>
/// <param name="commandText">存储过程名或T-SQL语句</param>
/// <param name="para">
/// <para>和命令相关联的string2维数组,如果没有参数为'null'</para>
/// <para>1.string[,] para={{"参数名","参数值","获取或设置一个值，该值指示参数是只可输入、只可输出、双向还是存储过程返回值参数"}}; Input,InputOutput,Output,ReturnValue</para>
/// <para>2.string[,] para={{"参数名","参数值"}}; 少的这个为默认Input只可输入</para>
/// </param>
/// <returns>返回包含结果集的SqlDataReader</returns>
public static SqlDataReader ExecuteReader(SqlConnection connection, CommandType commandType, string commandText, string[,] para)
{
// ExecuteReader #6
return ExecuteReader(connection, (SqlTransaction)null, commandType, commandText, para, SqlConnectionOwnership.External);
}
/// <summary>
/// [调用者方式]执行指定数据库连接对象的数据阅读器,指定参数值.
/// </summary>
/// <remarks>
/// 此方法不提供访问存储过程输出参数和返回值参数.
/// 示例:
/// SqlDataReader dr = ExecuteReader(conn, "GetOrders", 24, 36);
/// </remarks>
/// <param name="connection">一个有效的数据库连接对象</param>
/// <param name="spName">T存储过程名</param>
/// <param name="parameterValues">分配给存储过程输入参数的对象数组</param>
/// <returns>返回包含结果集的SqlDataReader</returns>
public static SqlDataReader ExecuteReader(SqlConnection connection, string spName, params object[] parameterValues)
{
// ExecuteReader #7
if (connection == null) throw new ArgumentNullException("connection");
if (spName == null || spName.Length == 0) throw new ArgumentNullException("spName");
if ((parameterValues != null) && (parameterValues.Length > 0))
{
SqlParameter[] commandParameters = GetSpParameterSet(connection, spName);
AssignParameterValues(commandParameters, parameterValues);
return ExecuteReader(connection, CommandType.Text, spName, commandParameters);
}
else
{
return ExecuteReader(connection, CommandType.Text, spName);
}
}
/// <summary>
/// [调用者方式]执行指定数据库事务的数据阅读器,指定参数值.
/// </summary>
/// <remarks>
/// 示例:
/// SqlDataReader dr = ExecuteReader(trans, CommandType.StoredProcedure, "GetOrders");
/// </remarks>
/// <param name="transaction">一个有效的连接事务</param>
/// <param name="commandType">命令类型 (存储过程,命令文本或其它)</param>
/// <param name="commandText">存储过程名称或T-SQL语句</param>
/// <returns>返回包含结果集的SqlDataReader</returns>
public static SqlDataReader ExecuteReader(SqlTransaction transaction, CommandType commandType, string commandText)
{
// ExecuteReader #8
return ExecuteReader(transaction, commandType, commandText, (SqlParameter[])null);
}
/// <summary>
/// [调用者方式]执行指定数据库事务的数据阅读器,指定参数.
/// </summary>
/// <remarks>
/// 示例:
/// SqlDataReader dr = ExecuteReader(trans, CommandType.StoredProcedure, "GetOrders", new SqlParameter("@prodid", 24));
/// </remarks>
/// <param name="transaction">一个有效的连接事务</param>
/// <param name="commandType">命令类型 (存储过程,命令文本或其它)</param>
/// <param name="commandText">存储过程名称或T-SQL语句</param>
/// <param name="commandParameters">分配给命令的SqlParamter参数数组</param>
/// <returns>返回包含结果集的SqlDataReader</returns>
public static SqlDataReader ExecuteReader(SqlTransaction transaction, CommandType commandType, string commandText, params SqlParameter[] commandParameters)
{
// ExecuteReader #9
if (transaction == null) throw new ArgumentNullException("transaction");
if (transaction != null && transaction.Connection == null) throw new ArgumentException("The transaction was rollbacked or commited, please provide an open transaction.", "transaction");
return ExecuteReader(transaction.Connection, transaction, commandType, commandText, commandParameters, SqlConnectionOwnership.External);
}
/// <summary>
/// [调用者方式]执行指定数据库事务的数据阅读器,指定参数.
/// </summary>
/// <remarks>
/// 示例:
/// SqlDataReader dr = ExecuteReader(trans, CommandType.StoredProcedure, "GetOrders", para);
/// </remarks>
/// <param name="transaction">一个有效的连接事务</param>
/// <param name="commandType">命令类型 (存储过程,命令文本或其它)</param>
/// <param name="commandText">存储过程名称或T-SQL语句</param>
/// <param name="para">
/// <para>和命令相关联的string2维数组,如果没有参数为'null'</para>
/// <para>1.string[,] para={{"参数名","参数值","获取或设置一个值，该值指示参数是只可输入、只可输出、双向还是存储过程返回值参数"}}; Input,InputOutput,Output,ReturnValue</para>
/// <para>2.string[,] para={{"参数名","参数值"}}; 少的这个为默认Input只可输入</para>
/// </param>
/// <returns>返回包含结果集的SqlDataReader</returns>
public static SqlDataReader ExecuteReader(SqlTransaction transaction, CommandType commandType, string commandText, string[,] para)
{
// ExecuteReader #9
if (transaction == null) throw new ArgumentNullException("transaction");
if (transaction != null && transaction.Connection == null) throw new ArgumentException("The transaction was rollbacked or commited, please provide an open transaction.", "transaction");
return ExecuteReader(transaction.Connection, transaction, commandType, commandText, para, SqlConnectionOwnership.External);
}
/// <summary>
/// [调用者方式]执行指定数据库事务的数据阅读器,指定参数值.
/// </summary>
/// <remarks>
/// 此方法不提供访问存储过程输出参数和返回值参数.
/// 示例:
/// SqlDataReader dr = ExecuteReader(trans, "GetOrders", 24, 36);
/// </remarks>
/// <param name="transaction">一个有效的连接事务</param>
/// <param name="spName">存储过程名称</param>
/// <param name="parameterValues">分配给存储过程输入参数的对象数组</param>
/// <returns>返回包含结果集的SqlDataReader</returns>
public static SqlDataReader ExecuteReader(SqlTransaction transaction, string spName, params object[] parameterValues)
{
// ExecuteReader #10
if (transaction == null) throw new ArgumentNullException("transaction");
if (transaction != null && transaction.Connection == null) throw new ArgumentException("The transaction was rollbacked or commited, please provide an open transaction.", "transaction");
if (spName == null || spName.Length == 0) throw new ArgumentNullException("spName");
// 如果有参数值
if ((parameterValues != null) && (parameterValues.Length > 0))
{
SqlParameter[] commandParameters = GetSpParameterSet(transaction.Connection, spName);
AssignParameterValues(commandParameters, parameterValues);
return ExecuteReader(transaction, CommandType.Text, spName, commandParameters);
}
else
{
// 没有参数值
return ExecuteReader(transaction, CommandType.Text, spName);
}
}
#endregion ExecuteReader 数据阅读器
#region ExecuteScalar 返回结果集中的第一行第一列
/// <summary>
/// 执行SQL语句,返回结果集中的第一行第一列
/// </summary>
/// <typeparam name="T">返回对象类型</typeparam>
/// <param name="commandText">SQL语句</param>
/// <param name="parms">查询参数</param>
/// <returns>返回结果集中的第一行第一列</returns>
public static T ExecuteScalar<T>(string commandText)
{
object result = ExecuteScalar(cStr, commandText, (SqlParameter[])null);
if (result != null)
{
return (T)Convert.ChangeType(result, typeof(T)); ;
}
return default(T);
}
/// <summary>
/// 执行SQL语句,返回结果集中的第一行第一列
/// </summary>
/// <typeparam name="T">返回对象类型</typeparam>
/// <param name="connectionString">数据库连接字符串</param>
/// <param name="commandText">SQL语句</param>
/// <returns>返回结果集中的第一行第一列</returns>
public static T ExecuteScalar<T>(string connectionString, string commandText)
{
object result = ExecuteScalar(connectionString, commandText, (SqlParameter[])null);
if (result != null)
{
return (T)Convert.ChangeType(result, typeof(T)); ;
}
return default(T);
}
/// <summary>
/// 执行SQL语句,返回结果集中的第一行第一列
/// </summary>
/// <typeparam name="T">返回对象类型</typeparam>
/// <param name="commandText">SQL语句</param>
/// <param name="parms">查询参数</param>
/// <returns>返回结果集中的第一行第一列</returns>
public static T ExecuteScalar<T>(string commandText, params SqlParameter[] parms)
{
object result = ExecuteScalar(cStr, commandText, parms);
if (result != null)
{
return (T)Convert.ChangeType(result, typeof(T)); ;
}
return default(T);
}
/// <summary>
/// 执行SQL语句,返回结果集中的第一行第一列
/// </summary>
/// <typeparam name="T">返回对象类型</typeparam>
/// <param name="commandText">SQL语句</param>
/// <param name="parms">查询参数</param>
/// <returns>返回结果集中的第一行第一列</returns>
public static T ExecuteScalar<T>( string commandText, string[,] parms)
{
object result = ExecuteScalar(cStr, commandText, parms);
if (result != null)
{
return (T)Convert.ChangeType(result, typeof(T)); ;
}
return default(T);
}
/// <summary>
/// 执行SQL语句,返回结果集中的第一行第一列
/// </summary>
/// <typeparam name="T">返回对象类型</typeparam>
/// <param name="connectionString">数据库连接字符串</param>
/// <param name="commandText">SQL语句</param>
/// <param name="parms">查询参数</param>
/// <returns>返回结果集中的第一行第一列</returns>
public static T ExecuteScalar<T>(string connectionString, string commandText, params SqlParameter[] parms)
{
object result = ExecuteScalar(connectionString, commandText, parms);
if (result != null)
{
return (T)Convert.ChangeType(result, typeof(T)); ;
}
return default(T);
}
/// <summary>
/// 执行SQL语句,返回结果集中的第一行第一列
/// </summary>
/// <typeparam name="T">返回对象类型</typeparam>
/// <param name="connectionString">数据库连接字符串</param>
/// <param name="commandText">SQL语句</param>
/// <param name="parms">查询参数</param>
/// <returns>返回结果集中的第一行第一列</returns>
public static T ExecuteScalar<T>(string connectionString, string commandText, string[,] parms)
{
object result = ExecuteScalar(connectionString, commandText, parms);
if (result != null)
{
return (T)Convert.ChangeType(result, typeof(T)); ;
}
return default(T);
}
/// <summary>
/// 执行指定数据库连接字符串的命令,返回结果集中的第一行第一列.
/// </summary>
/// <remarks>
/// 示例:
/// int orderCount = (int)ExecuteScalar(connString, CommandType.StoredProcedure, "GetOrderCount");
/// </remarks>
/// <param name="commandText">存储过程名称或T-SQL语句</param>
/// <returns>返回结果集中的第一行第一列</returns>
public static object ExecuteScalar(string commandText)
{
// ExecuteScalar #1
// 执行参数为空的方法
return ExecuteScalar(cStr, CommandType.Text, commandText, (SqlParameter[])null);
}
/// <summary>
/// 执行指定数据库连接字符串的命令,指定参数,返回结果集中的第一行第一列.
/// </summary>
/// <remarks>
/// 示例:
/// int orderCount = (int)ExecuteScalar(connString, CommandType.StoredProcedure, "GetOrderCount", para);
/// </remarks>
/// <param name="commandText">存储过程名称或T-SQL语句</param>
/// <param name="para">
/// <para>和命令相关联的string2维数组,如果没有参数为'null'</para>
/// <para>1.string[,] para={{"参数名","参数值","获取或设置一个值，该值指示参数是只可输入、只可输出、双向还是存储过程返回值参数"}}; Input,InputOutput,Output,ReturnValue</para>
/// <para>2.string[,] para={{"参数名","参数值"}}; 少的这个为默认Input只可输入</para>
/// </param>
/// <returns>返回结果集中的第一行第一列</returns>
public static object ExecuteScalar(string commandText, string[,] para)
{
// ExecuteScalar #1
// 执行参数为空的方法
return ExecuteScalar(cStr, CommandType.Text, commandText, para);
}
/// <summary>
/// 执行指定数据库连接字符串的命令,返回结果集中的第一行第一列.
/// </summary>
/// <remarks>
/// 示例:
/// int orderCount = (int)ExecuteScalar(connString, CommandType.StoredProcedure, "GetOrderCount");
/// </remarks>
/// <param name="connectionString">一个有效的数据库连接字符串</param>
/// <param name="commandType">命令类型 (存储过程,命令文本或其它)</param>
/// <param name="commandText">存储过程名称或T-SQL语句</param>
/// <returns>返回结果集中的第一行第一列</returns>
public static object ExecuteScalar(string connectionString, CommandType commandType, string commandText)
{
// ExecuteScalar #1
// 执行参数为空的方法
return ExecuteScalar(connectionString, commandType, commandText, (SqlParameter[])null);
}
/// <summary>
/// 执行指定数据库连接字符串的命令,指定参数,返回结果集中的第一行第一列.
/// </summary>
/// <remarks>
/// 示例:
/// int orderCount = (int)ExecuteScalar(connString, CommandType.StoredProcedure, "GetOrderCount", new SqlParameter("@prodid", 24));
/// </remarks>
/// <param name="connectionString">一个有效的数据库连接字符串</param>
/// <param name="commandType">命令类型 (存储过程,命令文本或其它)</param>
/// <param name="commandText">存储过程名称或T-SQL语句</param>
/// <param name="commandParameters">分配给命令的SqlParamter参数数组</param>
/// <returns>返回结果集中的第一行第一列</returns>
public static object ExecuteScalar(string connectionString, CommandType commandType, string commandText, params SqlParameter[] commandParameters)
{
// ExecuteScalar #2
if (connectionString == null || connectionString.Length == 0) throw new ArgumentNullException("connectionString");
// 创建并打开数据库连接对象,操作完成释放对象.
using (SqlConnection connection = new SqlConnection(connectionString))
{
//IntelnetConnState.HasNetworkAlive();
connection.Open();
// 调用指定数据库连接字符串重载方法.
return ExecuteScalar(connection, commandType, commandText, commandParameters);
}
}
/// <summary>
/// 执行指定数据库连接字符串的命令,指定参数,返回结果集中的第一行第一列.
/// </summary>
/// <remarks>
/// 示例:
/// int orderCount = (int)ExecuteScalar(connString, CommandType.StoredProcedure, "GetOrderCount", para);
/// </remarks>
/// <param name="connectionString">一个有效的数据库连接字符串</param>
/// <param name="commandType">命令类型 (存储过程,命令文本或其它)</param>
/// <param name="commandText">存储过程名称或T-SQL语句</param>
/// <param name="para">
/// <para>和命令相关联的string2维数组,如果没有参数为'null'</para>
/// <para>1.string[,] para={{"参数名","参数值","获取或设置一个值，该值指示参数是只可输入、只可输出、双向还是存储过程返回值参数"}}; Input,InputOutput,Output,ReturnValue</para>
/// <para>2.string[,] para={{"参数名","参数值"}}; 少的这个为默认Input只可输入</para>
/// </param>
/// <returns>返回结果集中的第一行第一列</returns>
public static object ExecuteScalar(string connectionString, CommandType commandType, string commandText, string[,] para)
{
// ExecuteScalar #2
if (connectionString == null || connectionString.Length == 0) throw new ArgumentNullException("connectionString");
// 创建并打开数据库连接对象,操作完成释放对象.
using (SqlConnection connection = new SqlConnection(connectionString))
{
//IntelnetConnState.HasNetworkAlive();
connection.Open();
// 调用指定数据库连接字符串重载方法.
return ExecuteScalar(connection, commandType, commandText, para);
}
}
/// <summary>
/// 执行指定数据库连接字符串的命令,指定参数值,返回结果集中的第一行第一列.
/// </summary>
/// <remarks>
/// 此方法不提供访问存储过程输出参数和返回值参数.
/// 示例:
/// int orderCount = (int)ExecuteScalar(connString, "GetOrderCount", 24, 36);
/// </remarks>
/// <param name="connectionString">一个有效的数据库连接字符串</param>
/// <param name="spName">存储过程名称</param>
/// <param name="parameterValues">分配给存储过程输入参数的对象数组</param>
/// <returns>返回结果集中的第一行第一列</returns>
public static object ExecuteScalar(string connectionString, string spName, params object[] parameterValues)
{
// ExecuteScalar #3
if (connectionString == null || connectionString.Length == 0) throw new ArgumentNullException("connectionString");
if (spName == null || spName.Length == 0) throw new ArgumentNullException("spName");
// 如果有参数值
if ((parameterValues != null) && (parameterValues.Length > 0))
{
// 从缓存中加载存储过程参数,如果缓存中不存在则从数据库中检索参数信息并加载到缓存中. ()
SqlParameter[] commandParameters = GetSpParameterSet(connectionString, spName);
// 给存储过程参数赋值
AssignParameterValues(commandParameters, parameterValues);
// 调用重载方法
return ExecuteScalar(connectionString, CommandType.StoredProcedure, spName, commandParameters);
}
else
{
// 没有参数值
return ExecuteScalar(connectionString, CommandType.StoredProcedure, spName);
}
}
/// <summary>
/// 执行指定数据库连接对象的命令,返回结果集中的第一行第一列.
/// </summary>
/// <remarks>
/// 示例:
/// int orderCount = (int)ExecuteScalar(conn, CommandType.StoredProcedure, "GetOrderCount");
/// </remarks>
/// <param name="connection">一个有效的数据库连接对象</param>
/// <param name="commandType">命令类型 (存储过程,命令文本或其它)</param>
/// <param name="commandText">存储过程名称或T-SQL语句</param>
/// <returns>返回结果集中的第一行第一列</returns>
public static object ExecuteScalar(SqlConnection connection, CommandType commandType, string commandText)
{
// ExecuteScalar #4
// 执行参数为空的方法
return ExecuteScalar(connection, commandType, commandText, (SqlParameter[])null);
}
/// <summary>
/// 执行指定数据库连接对象的命令,指定参数,返回结果集中的第一行第一列.
/// </summary>
/// <remarks>
/// 示例:
/// int orderCount = (int)ExecuteScalar(conn, CommandType.StoredProcedure, "GetOrderCount", new SqlParameter("@prodid", 24));
/// </remarks>
/// <param name="connection">一个有效的数据库连接对象</param>
/// <param name="commandType">命令类型 (存储过程,命令文本或其它)</param>
/// <param name="commandText">存储过程名称或T-SQL语句</param>
/// <param name="commandParameters">分配给命令的SqlParamter参数数组</param>
/// <returns>返回结果集中的第一行第一列</returns>
public static object ExecuteScalar(SqlConnection connection, CommandType commandType, string commandText, params SqlParameter[] commandParameters)
{
// ExecuteScalar #5
if (connection == null) throw new ArgumentNullException("connection");
// 创建SqlCommand命令,并进行预处理
SqlCommand cmd = new SqlCommand();
cmd.CommandTimeout = CommandTimeOut;
bool mustCloseConnection = false;
PrepareCommand(cmd, connection, (SqlTransaction)null, commandType, commandText, commandParameters, out mustCloseConnection);
// 执行SqlCommand命令,并返回结果.
object retval = null;
try
{
retval = cmd.ExecuteScalar();
}
catch { }
// 清除参数,以便再次使用.
cmd.Parameters.Clear();
if (mustCloseConnection)
connection.Close();
return retval;
}
/// <summary>
/// 执行指定数据库连接对象的命令,指定参数,返回结果集中的第一行第一列.
/// </summary>
/// <remarks>
/// 示例:
/// int orderCount = (int)ExecuteScalar(conn, CommandType.StoredProcedure, "GetOrderCount", para);
/// </remarks>
/// <param name="connection">一个有效的数据库连接对象</param>
/// <param name="commandType">命令类型 (存储过程,命令文本或其它)</param>
/// <param name="commandText">存储过程名称或T-SQL语句</param>
/// <param name="para">
/// <para>和命令相关联的string2维数组,如果没有参数为'null'</para>
/// <para>1.string[,] para={{"参数名","参数值","获取或设置一个值，该值指示参数是只可输入、只可输出、双向还是存储过程返回值参数"}}; Input,InputOutput,Output,ReturnValue</para>
/// <para>2.string[,] para={{"参数名","参数值"}}; 少的这个为默认Input只可输入</para>
/// </param>
/// <returns>返回结果集中的第一行第一列</returns>
public static object ExecuteScalar(SqlConnection connection, CommandType commandType, string commandText, string[,] para)
{
// ExecuteScalar #5
if (connection == null) throw new ArgumentNullException("connection");
// 创建SqlCommand命令,并进行预处理
SqlCommand cmd = new SqlCommand();
cmd.CommandTimeout = CommandTimeOut;
bool mustCloseConnection = false;
PrepareCommand(cmd, connection, (SqlTransaction)null, commandType, commandText, para, out mustCloseConnection);
// 执行SqlCommand命令,并返回结果.
object retval = null;
try
{
retval = cmd.ExecuteScalar();
}
catch(Exception e) {
}
// 清除参数,以便再次使用.
cmd.Parameters.Clear();
if (mustCloseConnection)
connection.Close();
return retval;
}
/// <summary>
/// 执行指定数据库连接对象的命令,指定参数值,返回结果集中的第一行第一列.
/// </summary>
/// <remarks>
/// 此方法不提供访问存储过程输出参数和返回值参数.
/// 示例:
/// int orderCount = (int)ExecuteScalar(conn, "GetOrderCount", 24, 36);
/// </remarks>
/// <param name="connection">一个有效的数据库连接对象</param>
/// <param name="spName">存储过程名称</param>
/// <param name="parameterValues">分配给存储过程输入参数的对象数组</param>
/// <returns>返回结果集中的第一行第一列</returns>
public static object ExecuteScalar(SqlConnection connection, string spName, params object[] parameterValues)
{
// ExecuteScalar #6
if (connection == null) throw new ArgumentNullException("connection");
if (spName == null || spName.Length == 0) throw new ArgumentNullException("spName");
// 如果有参数值
if ((parameterValues != null) && (parameterValues.Length > 0))
{
// 从缓存中加载存储过程参数,如果缓存中不存在则从数据库中检索参数信息并加载到缓存中. ()
SqlParameter[] commandParameters = GetSpParameterSet(connection, spName);
// 给存储过程参数赋值
AssignParameterValues(commandParameters, parameterValues);
// 调用重载方法
return ExecuteScalar(connection, CommandType.StoredProcedure, spName, commandParameters);
}
else
{
// 没有参数值
return ExecuteScalar(connection, CommandType.StoredProcedure, spName);
}
}
/// <summary>
/// 执行指定数据库事务的命令,返回结果集中的第一行第一列.
/// </summary>
/// <remarks>
/// 示例:
/// int orderCount = (int)ExecuteScalar(trans, CommandType.StoredProcedure, "GetOrderCount");
/// </remarks>
/// <param name="transaction">一个有效的连接事务</param>
/// <param name="commandType">命令类型 (存储过程,命令文本或其它)</param>
/// <param name="commandText">存储过程名称或T-SQL语句</param>
/// <returns>返回结果集中的第一行第一列</returns>
public static object ExecuteScalar(SqlTransaction transaction, CommandType commandType, string commandText)
{
// ExecuteScalar #7
// 执行参数为空的方法
return ExecuteScalar(transaction, commandType, commandText, (SqlParameter[])null);
}
/// <summary>
/// 执行指定数据库事务的命令,指定参数,返回结果集中的第一行第一列.
/// </summary>
/// <remarks>
/// 示例:
/// int orderCount = (int)ExecuteScalar(trans, CommandType.StoredProcedure, "GetOrderCount", new SqlParameter("@prodid", 24));
/// </remarks>
/// <param name="transaction">一个有效的连接事务</param>
/// <param name="commandType">命令类型 (存储过程,命令文本或其它)</param>
/// <param name="commandText">存储过程名称或T-SQL语句</param>
/// <param name="commandParameters">分配给命令的SqlParamter参数数组</param>
/// <returns>返回结果集中的第一行第一列</returns>
public static object ExecuteScalar(SqlTransaction transaction, CommandType commandType, string commandText, params SqlParameter[] commandParameters)
{
// ExecuteScalar #8
if (transaction == null) throw new ArgumentNullException("transaction");
if (transaction != null && transaction.Connection == null) throw new ArgumentException("The transaction was rollbacked or commited, please provide an open transaction.", "transaction");
// 创建SqlCommand命令,并进行预处理
SqlCommand cmd = new SqlCommand();
cmd.CommandTimeout = CommandTimeOut;
bool mustCloseConnection = false;
PrepareCommand(cmd, transaction.Connection, transaction, commandType, commandText, commandParameters, out mustCloseConnection);
// 执行SqlCommand命令,并返回结果.
object retval = null;
try
{
retval = cmd.ExecuteScalar();
}
catch { }
// 清除参数,以便再次使用.
cmd.Parameters.Clear();
return retval;
}
/// <summary>
/// 执行指定数据库事务的命令,指定参数,返回结果集中的第一行第一列.
/// </summary>
/// <remarks>
/// 示例:
/// int orderCount = (int)ExecuteScalar(trans, CommandType.StoredProcedure, "GetOrderCount", para);
/// </remarks>
/// <param name="transaction">一个有效的连接事务</param>
/// <param name="commandType">命令类型 (存储过程,命令文本或其它)</param>
/// <param name="commandText">存储过程名称或T-SQL语句</param>
/// <param name="para">
/// <para>和命令相关联的string2维数组,如果没有参数为'null'</para>
/// <para>1.string[,] para={{"参数名","参数值","获取或设置一个值，该值指示参数是只可输入、只可输出、双向还是存储过程返回值参数"}}; Input,InputOutput,Output,ReturnValue</para>
/// <para>2.string[,] para={{"参数名","参数值"}}; 少的这个为默认Input只可输入</para>
/// </param>
/// <returns>返回结果集中的第一行第一列</returns>
public static object ExecuteScalar(SqlTransaction transaction, string commandText, string[,] para)
{
return ExecuteScalar(transaction, CommandType.Text, commandText, para);
}
/// <summary>
/// 执行指定数据库事务的命令,指定参数,返回结果集中的第一行第一列.
/// </summary>
/// <remarks>
/// 示例:
/// int orderCount = (int)ExecuteScalar(trans, CommandType.StoredProcedure, "GetOrderCount", para);
/// </remarks>
/// <param name="transaction">一个有效的连接事务</param>
/// <param name="commandType">命令类型 (存储过程,命令文本或其它)</param>
/// <param name="commandText">存储过程名称或T-SQL语句</param>
/// <param name="para">
/// <para>和命令相关联的string2维数组,如果没有参数为'null'</para>
/// <para>1.string[,] para={{"参数名","参数值","获取或设置一个值，该值指示参数是只可输入、只可输出、双向还是存储过程返回值参数"}}; Input,InputOutput,Output,ReturnValue</para>
/// <para>2.string[,] para={{"参数名","参数值"}}; 少的这个为默认Input只可输入</para>
/// </param>
/// <returns>返回结果集中的第一行第一列</returns>
public static object ExecuteScalar(SqlTransaction transaction, CommandType commandType, string commandText, string[,] para)
{
// ExecuteScalar #8
if (transaction == null) throw new ArgumentNullException("transaction");
if (transaction != null && transaction.Connection == null) throw new ArgumentException("The transaction was rollbacked or commited, please provide an open transaction.", "transaction");
// 创建SqlCommand命令,并进行预处理
SqlCommand cmd = new SqlCommand();
cmd.CommandTimeout = CommandTimeOut;
bool mustCloseConnection = false;
PrepareCommand(cmd, transaction.Connection, transaction, commandType, commandText, para, out mustCloseConnection);
// 执行SqlCommand命令,并返回结果.
object retval = null;
try
{
retval = cmd.ExecuteScalar();
}
catch { }
// 清除参数,以便再次使用.
cmd.Parameters.Clear();
return retval;
}
/// <summary>
/// 执行指定数据库事务的命令,指定参数值,返回结果集中的第一行第一列.
/// </summary>
/// <remarks>
/// 此方法不提供访问存储过程输出参数和返回值参数.
/// 示例:
/// int orderCount = (int)ExecuteScalar(trans, "GetOrderCount", 24, 36);
/// </remarks>
/// <param name="transaction">一个有效的连接事务</param>
/// <param name="spName">存储过程名称</param>
/// <param name="parameterValues">分配给存储过程输入参数的对象数组</param>
/// <returns>返回结果集中的第一行第一列</returns>
public static object ExecuteScalar(SqlTransaction transaction, string spName, params object[] parameterValues)
{
// ExecuteScalar #9
if (transaction == null) throw new ArgumentNullException("transaction");
if (transaction != null && transaction.Connection == null) throw new ArgumentException("The transaction was rollbacked or commited, please provide an open transaction.", "transaction");
if (spName == null || spName.Length == 0) throw new ArgumentNullException("spName");
// 如果有参数值
if ((parameterValues != null) && (parameterValues.Length > 0))
{
SqlParameter[] commandParameters = GetSpParameterSet(transaction.Connection, spName);
// 给存储过程参数赋值
AssignParameterValues(commandParameters, parameterValues);
// 调用重载方法
return ExecuteScalar(transaction, CommandType.StoredProcedure, spName, commandParameters);
}
else
{
// 没有参数值
return ExecuteScalar(transaction, CommandType.StoredProcedure, spName);
}
}
#endregion ExecuteScalar
#region ExecuteXmlReader XML阅读器
/// <summary>
/// 执行指定数据库连接对象的SqlCommand命令,并产生一个XmlReader对象做为结果集返回.
/// </summary>
/// <remarks>
/// 示例:
/// XmlReader r = ExecuteXmlReader(conn, CommandType.StoredProcedure, "GetOrders");
/// </remarks>
/// <param name="connection">一个有效的数据库连接对象</param>
/// <param name="commandType">命令类型 (存储过程,命令文本或其它)</param>
/// <param name="commandText">存储过程名称或T-SQL语句 using "FOR XML AUTO"</param>
/// <returns>返回XmlReader结果集对象.</returns>
public static XmlReader ExecuteXmlReader(SqlConnection connection, CommandType commandType, string commandText)
{
// ExecuteXmlReader #1
// 执行参数为空的方法
return ExecuteXmlReader(connection, commandType, commandText, (SqlParameter[])null);
}
/// <summary>
/// 执行指定数据库连接对象的SqlCommand命令,并产生一个XmlReader对象做为结果集返回,指定参数.
/// </summary>
/// <remarks>
/// 示例:
/// XmlReader r = ExecuteXmlReader(conn, CommandType.StoredProcedure, "GetOrders", new SqlParameter("@prodid", 24));
/// </remarks>
/// <param name="connection">一个有效的数据库连接对象</param>
/// <param name="commandType">命令类型 (存储过程,命令文本或其它)</param>
/// <param name="commandText">存储过程名称或T-SQL语句 using "FOR XML AUTO"</param>
/// <param name="commandParameters">分配给命令的SqlParamter参数数组</param>
/// <returns>返回XmlReader结果集对象.</returns>
public static XmlReader ExecuteXmlReader(SqlConnection connection, CommandType commandType, string commandText, params SqlParameter[] commandParameters)
{
// ExecuteXmlReader #2
if (connection == null) throw new ArgumentNullException("connection");
bool mustCloseConnection = false;
// 创建SqlCommand命令,并进行预处理
SqlCommand cmd = new SqlCommand();
cmd.CommandTimeout = CommandTimeOut;
try
{
PrepareCommand(cmd, connection, (SqlTransaction)null, commandType, commandText, commandParameters, out mustCloseConnection);
// 执行命令
XmlReader retval = cmd.ExecuteXmlReader();
// 清除参数,以便再次使用.
cmd.Parameters.Clear();
return retval;
}
catch
{
if (mustCloseConnection)
connection.Close();
throw;
}
}
/// <summary>
/// 执行指定数据库连接对象的SqlCommand命令,并产生一个XmlReader对象做为结果集返回,指定参数.
/// </summary>
/// <remarks>
/// 示例:
/// XmlReader r = ExecuteXmlReader(conn, CommandType.StoredProcedure, "GetOrders", para);
/// </remarks>
/// <param name="connection">一个有效的数据库连接对象</param>
/// <param name="commandType">命令类型 (存储过程,命令文本或其它)</param>
/// <param name="commandText">存储过程名称或T-SQL语句 using "FOR XML AUTO"</param>
/// <param name="para">
/// <para>和命令相关联的string2维数组,如果没有参数为'null'</para>
/// <para>1.string[,] para={{"参数名","参数值","获取或设置一个值，该值指示参数是只可输入、只可输出、双向还是存储过程返回值参数"}}; Input,InputOutput,Output,ReturnValue</para>
/// <para>2.string[,] para={{"参数名","参数值"}}; 少的这个为默认Input只可输入</para>
/// </param>
/// <returns>返回XmlReader结果集对象.</returns>
public static XmlReader ExecuteXmlReader(SqlConnection connection, CommandType commandType, string commandText, string[,] para)
{
// ExecuteXmlReader #2
if (connection == null) throw new ArgumentNullException("connection");
bool mustCloseConnection = false;
// 创建SqlCommand命令,并进行预处理
SqlCommand cmd = new SqlCommand();
cmd.CommandTimeout = CommandTimeOut;
try
{
PrepareCommand(cmd, connection, (SqlTransaction)null, commandType, commandText, para, out mustCloseConnection);
// 执行命令
XmlReader retval = cmd.ExecuteXmlReader();
// 清除参数,以便再次使用.
cmd.Parameters.Clear();
return retval;
}
catch
{
if (mustCloseConnection)
connection.Close();
throw;
}
}
/// <summary>
/// 执行指定数据库连接对象的SqlCommand命令,并产生一个XmlReader对象做为结果集返回,指定参数值.
/// </summary>
/// <remarks>
/// 此方法不提供访问存储过程输出参数和返回值参数.
/// 示例:
/// XmlReader r = ExecuteXmlReader(conn, "GetOrders", 24, 36);
/// </remarks>
/// <param name="connection">一个有效的数据库连接对象</param>
/// <param name="spName">存储过程名称 using "FOR XML AUTO"</param>
/// <param name="parameterValues">分配给存储过程输入参数的对象数组</param>
/// <returns>返回XmlReader结果集对象.</returns>
public static XmlReader ExecuteXmlReader(SqlConnection connection, string spName, params object[] parameterValues)
{
// ExecuteXmlReader #3
if (connection == null) throw new ArgumentNullException("connection");
if (spName == null || spName.Length == 0) throw new ArgumentNullException("spName");
// 如果有参数值
if ((parameterValues != null) && (parameterValues.Length > 0))
{
// 从缓存中加载存储过程参数,如果缓存中不存在则从数据库中检索参数信息并加载到缓存中. ()
SqlParameter[] commandParameters = GetSpParameterSet(connection, spName);
// 给存储过程参数赋值
AssignParameterValues(commandParameters, parameterValues);
// 调用重载方法
return ExecuteXmlReader(connection, CommandType.StoredProcedure, spName, commandParameters);
}
else
{
// 没有参数值
return ExecuteXmlReader(connection, CommandType.StoredProcedure, spName);
}
}
/// <summary>
/// 执行指定数据库事务的SqlCommand命令,并产生一个XmlReader对象做为结果集返回.
/// </summary>
/// <remarks>
/// 示例:
/// XmlReader r = ExecuteXmlReader(trans, CommandType.StoredProcedure, "GetOrders");
/// </remarks>
/// <param name="transaction">一个有效的连接事务</param>
/// <param name="commandType">命令类型 (存储过程,命令文本或其它)</param>
/// <param name="commandText">存储过程名称或T-SQL语句 using "FOR XML AUTO"</param>
/// <returns>返回XmlReader结果集对象.</returns>
public static XmlReader ExecuteXmlReader(SqlTransaction transaction, CommandType commandType, string commandText)
{
// ExecuteXmlReader #4
// 执行参数为空的方法
return ExecuteXmlReader(transaction, commandType, commandText, (SqlParameter[])null);
}
/// <summary>
/// 执行指定数据库事务的SqlCommand命令,并产生一个XmlReader对象做为结果集返回,指定参数.
/// </summary>
/// <remarks>
/// 示例:
/// XmlReader r = ExecuteXmlReader(trans, CommandType.StoredProcedure, "GetOrders", new SqlParameter("@prodid", 24));
/// </remarks>
/// <param name="transaction">一个有效的连接事务</param>
/// <param name="commandType">命令类型 (存储过程,命令文本或其它)</param>
/// <param name="commandText">存储过程名称或T-SQL语句 using "FOR XML AUTO"</param>
/// <param name="commandParameters">分配给命令的SqlParamter参数数组</param>
/// <returns>返回XmlReader结果集对象.</returns>
public static XmlReader ExecuteXmlReader(SqlTransaction transaction, CommandType commandType, string commandText, params SqlParameter[] commandParameters)
{
// ExecuteXmlReader #5
if (transaction == null) throw new ArgumentNullException("transaction");
if (transaction != null && transaction.Connection == null) throw new ArgumentException("The transaction was rollbacked or commited, please provide an open transaction.", "transaction");
// 创建SqlCommand命令,并进行预处理
SqlCommand cmd = new SqlCommand();
cmd.CommandTimeout = CommandTimeOut;
bool mustCloseConnection = false;
PrepareCommand(cmd, transaction.Connection, transaction, commandType, commandText, commandParameters, out mustCloseConnection);
// 执行命令
XmlReader retval = cmd.ExecuteXmlReader();
// 清除参数,以便再次使用.
cmd.Parameters.Clear();
return retval;
}
/// <summary>
/// 执行指定数据库事务的SqlCommand命令,并产生一个XmlReader对象做为结果集返回,指定参数.
/// </summary>
/// <remarks>
/// 示例:
/// XmlReader r = ExecuteXmlReader(trans, CommandType.StoredProcedure, "GetOrders", para);
/// </remarks>
/// <param name="transaction">一个有效的连接事务</param>
/// <param name="commandType">命令类型 (存储过程,命令文本或其它)</param>
/// <param name="commandText">存储过程名称或T-SQL语句 using "FOR XML AUTO"</param>
/// <param name="para">
/// <para>和命令相关联的string2维数组,如果没有参数为'null'</para>
/// <para>1.string[,] para={{"参数名","参数值","获取或设置一个值，该值指示参数是只可输入、只可输出、双向还是存储过程返回值参数"}}; Input,InputOutput,Output,ReturnValue</para>
/// <para>2.string[,] para={{"参数名","参数值"}}; 少的这个为默认Input只可输入</para>
/// </param>
/// <returns>返回XmlReader结果集对象.</returns>
public static XmlReader ExecuteXmlReader(SqlTransaction transaction, CommandType commandType, string commandText, string[,] para)
{
// ExecuteXmlReader #5
if (transaction == null) throw new ArgumentNullException("transaction");
if (transaction != null && transaction.Connection == null) throw new ArgumentException("The transaction was rollbacked or commited, please provide an open transaction.", "transaction");
// 创建SqlCommand命令,并进行预处理
SqlCommand cmd = new SqlCommand();
cmd.CommandTimeout = CommandTimeOut;
bool mustCloseConnection = false;
PrepareCommand(cmd, transaction.Connection, transaction, commandType, commandText, para, out mustCloseConnection);
// 执行命令
XmlReader retval = cmd.ExecuteXmlReader();
// 清除参数,以便再次使用.
cmd.Parameters.Clear();
return retval;
}
/// <summary>
/// 执行指定数据库事务的SqlCommand命令,并产生一个XmlReader对象做为结果集返回,指定参数值.
/// </summary>
/// <remarks>
/// 此方法不提供访问存储过程输出参数和返回值参数.
/// 示例:
/// XmlReader r = ExecuteXmlReader(trans, "GetOrders", 24, 36);
/// </remarks>
/// <param name="transaction">一个有效的连接事务</param>
/// <param name="spName">存储过程名称</param>
/// <param name="parameterValues">分配给存储过程输入参数的对象数组</param>
/// <returns>返回一个包含结果集的DataSet.</returns>
public static XmlReader ExecuteXmlReader(SqlTransaction transaction, string spName, params object[] parameterValues)
{
// ExecuteXmlReader #6
if (transaction == null) throw new ArgumentNullException("transaction");
if (transaction != null && transaction.Connection == null) throw new ArgumentException("The transaction was rollbacked or commited, please provide an open transaction.", "transaction");
if (spName == null || spName.Length == 0) throw new ArgumentNullException("spName");
// 如果有参数值
if ((parameterValues != null) && (parameterValues.Length > 0))
{
// 从缓存中加载存储过程参数,如果缓存中不存在则从数据库中检索参数信息并加载到缓存中. ()
SqlParameter[] commandParameters = GetSpParameterSet(transaction.Connection, spName);
// 给存储过程参数赋值
AssignParameterValues(commandParameters, parameterValues);
// 调用重载方法
return ExecuteXmlReader(transaction, CommandType.StoredProcedure, spName, commandParameters);
}
else
{
// 没有参数值
return ExecuteXmlReader(transaction, CommandType.StoredProcedure, spName);
}
}
#endregion ExecuteXmlReader 阅读器结束
#region FillDataset 填充数据集
/// <summary>
/// 执行指定数据库连接字符串的命令,映射数据表并填充数据集.
/// </summary>
/// <remarks>
/// 示例:
/// FillDataset(connString, CommandType.StoredProcedure, "GetOrders", ds, new string[] {"orders"});
/// </remarks>
/// <param name="connectionString">一个有效的数据库连接字符串</param>
/// <param name="commandType">命令类型 (存储过程,命令文本或其它)</param>
/// <param name="commandText">存储过程名称或T-SQL语句</param>
/// <param name="dataSet">要填充结果集的DataSet实例</param>
/// <param name="tableNames">表映射的数据表数组
/// 用户定义的表名 (可有是实际的表名.)</param>
public static void FillDataset(string connectionString, CommandType commandType, string commandText, DataSet dataSet, string[] tableNames)
{
// FillDataset #1
if (connectionString == null || connectionString.Length == 0) throw new ArgumentNullException("connectionString");
if (dataSet == null) throw new ArgumentNullException("dataSet");
// 创建并打开数据库连接对象,操作完成释放对象.
using (SqlConnection connection = new SqlConnection(connectionString))
{
//IntelnetConnState.HasNetworkAlive();
connection.Open();
// 调用指定数据库连接字符串重载方法.
FillDataset(connection, commandType, commandText, dataSet, tableNames);
}
}
/// <summary>
/// 执行指定数据库连接字符串的命令,映射数据表并填充数据集.指定命令参数.
/// </summary>
/// <remarks>
/// 示例:
/// FillDataset(connString, CommandType.StoredProcedure, "GetOrders", ds, new string[] {"orders"}, new SqlParameter("@prodid", 24));
/// </remarks>
/// <param name="connectionString">一个有效的数据库连接字符串</param>
/// <param name="commandType">命令类型 (存储过程,命令文本或其它)</param>
/// <param name="commandText">存储过程名称或T-SQL语句</param>
/// <param name="dataSet">分配给命令的SqlParamter参数数组</param>
/// <param name="tableNames">要填充结果集的DataSet实例</param>
/// <param name="commandParameters">表映射的数据表数组
/// 用户定义的表名 (可有是实际的表名.)
/// </param>
public static void FillDataset(string connectionString, CommandType commandType,
string commandText, DataSet dataSet, string[] tableNames,
params SqlParameter[] commandParameters)
{
// FillDataset #2
if (connectionString == null || connectionString.Length == 0) throw new ArgumentNullException("connectionString");
if (dataSet == null) throw new ArgumentNullException("dataSet");
// 创建并打开数据库连接对象,操作完成释放对象.
using (SqlConnection connection = new SqlConnection(connectionString))
{
//IntelnetConnState.HasNetworkAlive();
connection.Open();
// 调用指定数据库连接字符串重载方法.
FillDataset(connection, commandType, commandText, dataSet, tableNames, commandParameters);
}
}
/// <summary>
/// 执行指定数据库连接字符串的命令,映射数据表并填充数据集.指定命令参数.
/// </summary>
/// <remarks>
/// 示例:
/// FillDataset(connString, CommandType.StoredProcedure, "GetOrders", ds, new string[] {"orders"}, para);
/// </remarks>
/// <param name="connectionString">一个有效的数据库连接字符串</param>
/// <param name="commandType">命令类型 (存储过程,命令文本或其它)</param>
/// <param name="commandText">存储过程名称或T-SQL语句</param>
/// <param name="para">
/// <para>和命令相关联的string2维数组,如果没有参数为'null'</para>
/// <para>1.string[,] para={{"参数名","参数值","获取或设置一个值，该值指示参数是只可输入、只可输出、双向还是存储过程返回值参数"}}; Input,InputOutput,Output,ReturnValue</para>
/// <para>2.string[,] para={{"参数名","参数值"}}; 少的这个为默认Input只可输入</para>
/// </param>
/// <param name="tableNames">要填充结果集的DataSet实例</param>
/// <param name="commandParameters">表映射的数据表数组
/// 用户定义的表名 (可有是实际的表名.)
/// </param>
public static void FillDataset(string connectionString, CommandType commandType,
string commandText, DataSet dataSet, string[] tableNames,
string[,] para)
{
// FillDataset #2
if (connectionString == null || connectionString.Length == 0) throw new ArgumentNullException("connectionString");
if (dataSet == null) throw new ArgumentNullException("dataSet");
// 创建并打开数据库连接对象,操作完成释放对象.
using (SqlConnection connection = new SqlConnection(connectionString))
{
//IntelnetConnState.HasNetworkAlive();
connection.Open();
// 调用指定数据库连接字符串重载方法.
FillDataset(connection, commandType, commandText, dataSet, tableNames, para);
}
}
/// <summary>
/// 执行指定数据库连接字符串的命令,映射数据表并填充数据集,指定存储过程参数值.
/// </summary>
/// <remarks>
/// 此方法不提供访问存储过程输出参数和返回值参数.
/// 示例:
/// FillDataset(connString, CommandType.StoredProcedure, "GetOrders", ds, new string[] {"orders"}, 24);
/// </remarks>
/// <param name="connectionString">一个有效的数据库连接字符串</param>
/// <param name="spName">存储过程名称</param>
/// <param name="dataSet">要填充结果集的DataSet实例</param>
/// <param name="tableNames">表映射的数据表数组
/// 用户定义的表名 (可有是实际的表名.)
/// </param>
/// <param name="parameterValues">分配给存储过程输入参数的对象数组</param>
public static void FillDataset(string connectionString, string spName, DataSet dataSet, string[] tableNames, params object[] parameterValues)
{
// FillDataset #3
if (connectionString == null || connectionString.Length == 0) throw new ArgumentNullException("connectionString");
if (dataSet == null) throw new ArgumentNullException("dataSet");
// 创建并打开数据库连接对象,操作完成释放对象.
using (SqlConnection connection = new SqlConnection(connectionString))
{
//IntelnetConnState.HasNetworkAlive();
connection.Open();
// 调用指定数据库连接字符串重载方法.
FillDataset(connection, spName, dataSet, tableNames, parameterValues);
}
}
/// <summary>
/// 执行指定数据库连接对象的命令,映射数据表并填充数据集.
/// </summary>
/// <remarks>
/// 示例:
/// FillDataset(conn, CommandType.StoredProcedure, "GetOrders", ds, new string[] {"orders"});
/// </remarks>
/// <param name="connection">一个有效的数据库连接对象</param>
/// <param name="commandType">命令类型 (存储过程,命令文本或其它)</param>
/// <param name="commandText">存储过程名称或T-SQL语句</param>
/// <param name="dataSet">要填充结果集的DataSet实例</param>
/// <param name="tableNames">表映射的数据表数组
/// 用户定义的表名 (可有是实际的表名.)
/// </param>
public static void FillDataset(SqlConnection connection, CommandType commandType, string commandText, DataSet dataSet, string[] tableNames)
{
// FillDataset #4
FillDataset(connection, commandType, commandText, dataSet, tableNames, (SqlParameter)null);
}
/// <summary>
/// 执行指定数据库连接对象的命令,映射数据表并填充数据集,指定参数.
/// </summary>
/// <remarks>
/// 示例:
/// FillDataset(conn, CommandType.StoredProcedure, "GetOrders", ds, new string[] {"orders"}, new SqlParameter("@prodid", 24));
/// </remarks>
/// <param name="connection">一个有效的数据库连接对象</param>
/// <param name="commandType">命令类型 (存储过程,命令文本或其它)</param>
/// <param name="commandText">存储过程名称或T-SQL语句</param>
/// <param name="dataSet">要填充结果集的DataSet实例</param>
/// <param name="tableNames">表映射的数据表数组
/// 用户定义的表名 (可有是实际的表名.)
/// </param>
/// <param name="commandParameters">分配给命令的SqlParamter参数数组</param>
public static void FillDataset(SqlConnection connection, CommandType commandType, string commandText, DataSet dataSet, string[] tableNames, params SqlParameter[] commandParameters)
{
// FillDataset #5
FillDataset(connection, null, commandType, commandText, dataSet, tableNames, commandParameters);
}
/// <summary>
/// 执行指定数据库连接对象的命令,映射数据表并填充数据集,指定参数.
/// </summary>
/// <remarks>
/// 示例:
/// FillDataset(conn, CommandType.StoredProcedure, "GetOrders", ds, new string[] {"orders"}, para);
/// </remarks>
/// <param name="connection">一个有效的数据库连接对象</param>
/// <param name="commandType">命令类型 (存储过程,命令文本或其它)</param>
/// <param name="commandText">存储过程名称或T-SQL语句</param>
/// <param name="dataSet">要填充结果集的DataSet实例</param>
/// <param name="tableNames">表映射的数据表数组
/// 用户定义的表名 (可有是实际的表名.)
/// </param>
/// <param name="para">
/// <para>和命令相关联的string2维数组,如果没有参数为'null'</para>
/// <para>1.string[,] para={{"参数名","参数值","获取或设置一个值，该值指示参数是只可输入、只可输出、双向还是存储过程返回值参数"}}; Input,InputOutput,Output,ReturnValue</para>
/// <para>2.string[,] para={{"参数名","参数值"}}; 少的这个为默认Input只可输入</para>
/// </param>
public static void FillDataset(SqlConnection connection, CommandType commandType, string commandText, DataSet dataSet, string[] tableNames, string[,] para)
{
// FillDataset #5
FillDataset(connection, null, commandType, commandText, dataSet, tableNames, para);
}
/// <summary>
/// 执行指定数据库连接对象的命令,映射数据表并填充数据集,指定存储过程参数值.
/// </summary>
/// <remarks>
/// 此方法不提供访问存储过程输出参数和返回值参数.
/// 示例:
/// FillDataset(conn, "GetOrders", ds, new string[] {"orders"}, 24, 36);
/// </remarks>
/// <param name="connection">一个有效的数据库连接对象</param>
/// <param name="spName">存储过程名称</param>
/// <param name="dataSet">要填充结果集的DataSet实例</param>
/// <param name="tableNames">表映射的数据表数组
/// 用户定义的表名 (可有是实际的表名.)
/// </param>
/// <param name="parameterValues">分配给存储过程输入参数的对象数组</param>
public static void FillDataset(SqlConnection connection, string spName, DataSet dataSet, string[] tableNames, params object[] parameterValues)
{
// FillDataset #6
if (connection == null) throw new ArgumentNullException("connection");
if (dataSet == null) throw new ArgumentNullException("dataSet");
if (spName == null || spName.Length == 0) throw new ArgumentNullException("spName");
// 如果有参数值
if ((parameterValues != null) && (parameterValues.Length > 0))
{
// 从缓存中加载存储过程参数,如果缓存中不存在则从数据库中检索参数信息并加载到缓存中. ()
SqlParameter[] commandParameters = GetSpParameterSet(connection, spName);
// 给存储过程参数赋值
AssignParameterValues(commandParameters, parameterValues);
// 调用重载方法
FillDataset(connection, CommandType.StoredProcedure, spName, dataSet, tableNames, commandParameters);
}
else
{
// 没有参数值
FillDataset(connection, CommandType.StoredProcedure, spName, dataSet, tableNames);
}
}
/// <summary>
/// 执行指定数据库事务的命令,映射数据表并填充数据集.
/// </summary>
/// <remarks>
/// 示例:
/// FillDataset(trans, CommandType.StoredProcedure, "GetOrders", ds, new string[] {"orders"});
/// </remarks>
/// <param name="transaction">一个有效的连接事务</param>
/// <param name="commandType">命令类型 (存储过程,命令文本或其它)</param>
/// <param name="commandText">存储过程名称或T-SQL语句</param>
/// <param name="dataSet">要填充结果集的DataSet实例</param>
/// <param name="tableNames">表映射的数据表数组
/// 用户定义的表名 (可有是实际的表名.)
/// </param>
public static void FillDataset(SqlTransaction transaction, CommandType commandType, string commandText, DataSet dataSet, string[] tableNames)
{
// FillDataset #7
FillDataset(transaction, commandType, commandText, dataSet, tableNames, (SqlParameter)null);
}
/// <summary>
/// 执行指定数据库事务的命令,映射数据表并填充数据集,指定参数.
/// </summary>
/// <remarks>
/// 示例:
/// FillDataset(trans, CommandType.StoredProcedure, "GetOrders", ds, new string[] {"orders"}, new SqlParameter("@prodid", 24));
/// </remarks>
/// <param name="transaction">一个有效的连接事务</param>
/// <param name="commandType">命令类型 (存储过程,命令文本或其它)</param>
/// <param name="commandText">存储过程名称或T-SQL语句</param>
/// <param name="dataSet">要填充结果集的DataSet实例</param>
/// <param name="tableNames">表映射的数据表数组
/// 用户定义的表名 (可有是实际的表名.)
/// </param>
/// <param name="commandParameters">分配给命令的SqlParamter参数数组</param>
public static void FillDataset(SqlTransaction transaction, CommandType commandType, string commandText, DataSet dataSet, string[] tableNames, params SqlParameter[] commandParameters)
{
// FillDataset #8
FillDataset(transaction.Connection, transaction, commandType, commandText, dataSet, tableNames, commandParameters);
}
/// <summary>
/// 执行指定数据库事务的命令,映射数据表并填充数据集,指定参数.
/// </summary>
/// <remarks>
/// 示例:
/// FillDataset(trans, CommandType.StoredProcedure, "GetOrders", ds, new string[] {"orders"}, para);
/// </remarks>
/// <param name="transaction">一个有效的连接事务</param>
/// <param name="commandType">命令类型 (存储过程,命令文本或其它)</param>
/// <param name="commandText">存储过程名称或T-SQL语句</param>
/// <param name="dataSet">要填充结果集的DataSet实例</param>
/// <param name="tableNames">表映射的数据表数组
/// 用户定义的表名 (可有是实际的表名.)
/// </param>
/// <param name="para">
/// <para>和命令相关联的string2维数组,如果没有参数为'null'</para>
/// <para>1.string[,] para={{"参数名","参数值","获取或设置一个值，该值指示参数是只可输入、只可输出、双向还是存储过程返回值参数"}}; Input,InputOutput,Output,ReturnValue</para>
/// <para>2.string[,] para={{"参数名","参数值"}}; 少的这个为默认Input只可输入</para>
/// </param>
public static void FillDataset(SqlTransaction transaction, CommandType commandType, string commandText, DataSet dataSet, string[] tableNames, string[,] para)
{
// FillDataset #8
FillDataset(transaction.Connection, transaction, commandType, commandText, dataSet, tableNames, para);
}
/// <summary>
/// 执行指定数据库事务的命令,映射数据表并填充数据集,指定存储过程参数值.
/// </summary>
/// <remarks>
/// 此方法不提供访问存储过程输出参数和返回值参数.
/// 示例:
/// FillDataset(trans, "GetOrders", ds, new string[]{"orders"}, 24, 36);
/// </remarks>
/// <param name="transaction">一个有效的连接事务</param>
/// <param name="spName">存储过程名称</param>
/// <param name="dataSet">要填充结果集的DataSet实例</param>
/// <param name="tableNames">表映射的数据表数组
/// 用户定义的表名 (可有是实际的表名.)
/// </param>
/// <param name="parameterValues">分配给存储过程输入参数的对象数组</param>
public static void FillDataset(SqlTransaction transaction, string spName, DataSet dataSet, string[] tableNames, params object[] parameterValues)
{
// FillDataset #9
if (transaction == null) throw new ArgumentNullException("transaction");
if (transaction != null && transaction.Connection == null) throw new ArgumentException("The transaction was rollbacked or commited, please provide an open transaction.", "transaction");
if (dataSet == null) throw new ArgumentNullException("dataSet");
if (spName == null || spName.Length == 0) throw new ArgumentNullException("spName");
// 如果有参数值
if ((parameterValues != null) && (parameterValues.Length > 0))
{
// 从缓存中加载存储过程参数,如果缓存中不存在则从数据库中检索参数信息并加载到缓存中. ()
SqlParameter[] commandParameters = GetSpParameterSet(transaction.Connection, spName);
// 给存储过程参数赋值
AssignParameterValues(commandParameters, parameterValues);
// 调用重载方法
FillDataset(transaction, CommandType.StoredProcedure, spName, dataSet, tableNames, commandParameters);
}
else
{
// 没有参数值
FillDataset(transaction, CommandType.StoredProcedure, spName, dataSet, tableNames);
}
}
/// <summary>
/// [私有方法][内部调用]执行指定数据库连接对象/事务的命令,映射数据表并填充数据集,DataSet/TableNames/SqlParameters.
/// </summary>
/// <remarks>
/// 示例:
/// FillDataset(conn, trans, CommandType.StoredProcedure, "GetOrders", ds, new string[] {"orders"}, new SqlParameter("@prodid", 24));
/// </remarks>
/// <param name="connection">一个有效的数据库连接对象</param>
/// <param name="transaction">一个有效的连接事务</param>
/// <param name="commandType">命令类型 (存储过程,命令文本或其它)</param>
/// <param name="commandText">存储过程名称或T-SQL语句</param>
/// <param name="dataSet">要填充结果集的DataSet实例</param>
/// <param name="tableNames">表映射的数据表数组
/// 用户定义的表名 (可有是实际的表名.)
/// </param>
/// <param name="commandParameters">分配给命令的SqlParamter参数数组</param>
private static void FillDataset(SqlConnection connection, SqlTransaction transaction, CommandType commandType,
string commandText, DataSet dataSet, string[] tableNames, params SqlParameter[] commandParameters)
{
// FillDataset #10
if (connection == null) throw new ArgumentNullException("connection");
if (dataSet == null) throw new ArgumentNullException("dataSet");
// 创建SqlCommand命令,并进行预处理
SqlCommand command = new SqlCommand();
bool mustCloseConnection = false;
PrepareCommand(command, connection, transaction, commandType, commandText, commandParameters, out mustCloseConnection);
// 执行命令
using (SqlDataAdapter dataAdapter = new SqlDataAdapter(command))
{
// 追加表映射
if (tableNames != null && tableNames.Length > 0)
{
string tableName = "Table";
for (int index = 0; index < tableNames.Length; index++)
{
if (tableNames[index] == null || tableNames[index].Length == 0) throw new ArgumentException("The tableNames parameter must contain a list of tables, a value was provided as null or empty string.", "tableNames");
dataAdapter.TableMappings.Add(tableName, tableNames[index]);
tableName += (index + 1).ToString();
}
}
// 填充数据集使用默认表名称
dataAdapter.Fill(dataSet);
// 清除参数,以便再次使用.
command.Parameters.Clear();
}
if (mustCloseConnection)
connection.Close();
}
/// <summary>
/// [私有方法][内部调用]执行指定数据库连接对象/事务的命令,映射数据表并填充数据集,DataSet/TableNames/SqlParameters.
/// </summary>
/// <remarks>
/// 示例:
/// FillDataset(conn, trans, CommandType.StoredProcedure, "GetOrders", ds, new string[] {"orders"}, para);
/// </remarks>
/// <param name="connection">一个有效的数据库连接对象</param>
/// <param name="transaction">一个有效的连接事务</param>
/// <param name="commandType">命令类型 (存储过程,命令文本或其它)</param>
/// <param name="commandText">存储过程名称或T-SQL语句</param>
/// <param name="dataSet">要填充结果集的DataSet实例</param>
/// <param name="tableNames">表映射的数据表数组
/// 用户定义的表名 (可有是实际的表名.)
/// </param>
/// <param name="para">
/// <para>和命令相关联的string2维数组,如果没有参数为'null'</para>
/// <para>1.string[,] para={{"参数名","参数值","获取或设置一个值，该值指示参数是只可输入、只可输出、双向还是存储过程返回值参数"}}; Input,InputOutput,Output,ReturnValue</para>
/// <para>2.string[,] para={{"参数名","参数值"}}; 少的这个为默认Input只可输入</para>
/// </param>
private static void FillDataset(SqlConnection connection, SqlTransaction transaction, CommandType commandType,
string commandText, DataSet dataSet, string[] tableNames, string[,] para)
{
// FillDataset #10
if (connection == null) throw new ArgumentNullException("connection");
if (dataSet == null) throw new ArgumentNullException("dataSet");
// 创建SqlCommand命令,并进行预处理
SqlCommand command = new SqlCommand();
bool mustCloseConnection = false;
PrepareCommand(command, connection, transaction, commandType, commandText, para, out mustCloseConnection);
// 执行命令
using (SqlDataAdapter dataAdapter = new SqlDataAdapter(command))
{
// 追加表映射
if (tableNames != null && tableNames.Length > 0)
{
string tableName = "Table";
for (int index = 0; index < tableNames.Length; index++)
{
if (tableNames[index] == null || tableNames[index].Length == 0) throw new ArgumentException("The tableNames parameter must contain a list of tables, a value was provided as null or empty string.", "tableNames");
dataAdapter.TableMappings.Add(tableName, tableNames[index]);
tableName += (index + 1).ToString();
}
}
// 填充数据集使用默认表名称
dataAdapter.Fill(dataSet);
// 清除参数,以便再次使用.
command.Parameters.Clear();
}
if (mustCloseConnection)
connection.Close();
}
#endregion FillDataset 填充数据集
#region UpdateDataset 更新数据集
/// <summary>
/// 执行数据集更新到数据库,指定inserted, updated, or deleted命令.
/// </summary>
/// <remarks>
/// 示例:
/// UpdateDataset(conn, insertCommand, deleteCommand, updateCommand, dataSet, "Order");
/// </remarks>
/// <param name="insertCommand">[追加记录]一个有效的T-SQL语句或存储过程</param>
/// <param name="deleteCommand">[删除记录]一个有效的T-SQL语句或存储过程</param>
/// <param name="updateCommand">[更新记录]一个有效的T-SQL语句或存储过程</param>
/// <param name="dataSet">要更新到数据库的DataSet</param>
/// <param name="tableName">要更新到数据库的DataTable</param>
public static void UpdateDataset(SqlCommand insertCommand, SqlCommand deleteCommand, SqlCommand updateCommand, DataSet dataSet, string tableName)
{
if (insertCommand == null) throw new ArgumentNullException("insertCommand");
if (deleteCommand == null) throw new ArgumentNullException("deleteCommand");
if (updateCommand == null) throw new ArgumentNullException("updateCommand");
if (tableName == null || tableName.Length == 0) throw new ArgumentNullException("tableName");
// 创建SqlDataAdapter,当操作完成后释放.
using (SqlDataAdapter dataAdapter = new SqlDataAdapter())
{
// 设置数据适配器命令
dataAdapter.UpdateCommand = updateCommand;
dataAdapter.InsertCommand = insertCommand;
dataAdapter.DeleteCommand = deleteCommand;
// 更新数据集改变到数据库
dataAdapter.Update(dataSet, tableName);
// 提交所有改变到数据集.
dataSet.AcceptChanges();
}
}
#endregion UpdateDataset 更新数据集
#region CreateCommand 创建一条SqlCommand命令
/// <summary>
/// 创建SqlCommand命令,指定数据库连接对象,存储过程名和参数.
/// </summary>
/// <remarks>
/// 示例:
/// SqlCommand command = CreateCommand(conn, "AddCustomer", "CustomerID", "CustomerName");
/// </remarks>
/// <param name="connection">一个有效的数据库连接对象</param>
/// <param name="spName">存储过程名称</param>
/// <param name="sourceColumns">源表的列名称数组</param>
/// <returns>返回SqlCommand命令</returns>
public static SqlCommand CreateCommand(SqlConnection connection, string spName, params string[] sourceColumns)
{
// CreateCommand #1
if (connection == null) throw new ArgumentNullException("connection");
if (spName == null || spName.Length == 0) throw new ArgumentNullException("spName");
// 创建命令
SqlCommand cmd = new SqlCommand(spName, connection);
cmd.CommandTimeout = CommandTimeOut;
cmd.CommandType = CommandType.StoredProcedure;
// 如果有参数值
if ((sourceColumns != null) && (sourceColumns.Length > 0))
{
// 从缓存中加载存储过程参数,如果缓存中不存在则从数据库中检索参数信息并加载到缓存中. ()
SqlParameter[] commandParameters = GetSpParameterSet(connection, spName);
// 将源表的列到映射到DataSet命令中.
for (int index = 0; index < sourceColumns.Length; index++)
commandParameters[index].SourceColumn = sourceColumns[index];
// Attach the discovered parameters to the SqlCommand object
AttachParameters(cmd, commandParameters);
}
return cmd;
}
#endregion CreateCommand 创建一条SqlCommand命令
#region ExecuteNonQueryTypedParams 类型化参数(DataRow)
/// <summary>
/// 执行指定连接数据库连接字符串的存储过程,使用DataRow做为参数值,返回受影响的行数.
/// </summary>
/// <param name="connectionString">一个有效的数据库连接字符串</param>
/// <param name="spName">存储过程名称</param>
/// <param name="dataRow">使用DataRow作为参数值</param>
/// <returns>返回影响的行数</returns>
public static int ExecuteNonQueryTypedParams(String connectionString, String spName, DataRow dataRow)
{
// ExecuteNonQueryTypedParams #1
if (connectionString == null || connectionString.Length == 0) throw new ArgumentNullException("connectionString");
if (spName == null || spName.Length == 0) throw new ArgumentNullException("spName");
// 如果row有值,存储过程必须初始化.
if (dataRow != null && dataRow.ItemArray.Length > 0)
{
// 从缓存中加载存储过程参数,如果缓存中不存在则从数据库中检索参数信息并加载到缓存中. ()
SqlParameter[] commandParameters = GetSpParameterSet(connectionString, spName);
// 分配参数值
AssignParameterValues(commandParameters, dataRow);
return SqlHelper.ExecuteNonQuery(connectionString, CommandType.StoredProcedure, spName, commandParameters);
}
else
{
return SqlHelper.ExecuteNonQuery(connectionString, CommandType.StoredProcedure, spName);
}
}
/// <summary>
/// 执行指定连接数据库连接对象的存储过程,使用DataRow做为参数值,返回受影响的行数.
/// </summary>
/// <param name="connection">一个有效的数据库连接对象</param>
/// <param name="spName">存储过程名称</param>
/// <param name="dataRow">使用DataRow作为参数值</param>
/// <returns>返回影响的行数</returns>
public static int ExecuteNonQueryTypedParams(SqlConnection connection, String spName, DataRow dataRow)
{
// ExecuteNonQueryTypedParams #2
if (connection == null) throw new ArgumentNullException("connection");
if (spName == null || spName.Length == 0) throw new ArgumentNullException("spName");
// 如果row有值,存储过程必须初始化.
if (dataRow != null && dataRow.ItemArray.Length > 0)
{
// 从缓存中加载存储过程参数,如果缓存中不存在则从数据库中检索参数信息并加载到缓存中. ()
SqlParameter[] commandParameters = GetSpParameterSet(connection, spName);
// 分配参数值
AssignParameterValues(commandParameters, dataRow);
return SqlHelper.ExecuteNonQuery(connection, CommandType.StoredProcedure, spName, commandParameters);
}
else
{
return SqlHelper.ExecuteNonQuery(connection, CommandType.StoredProcedure, spName);
}
}
/// <summary>
/// 执行指定连接数据库事物的存储过程,使用DataRow做为参数值,返回受影响的行数.
/// </summary>
/// <param name="transaction">一个有效的连接事务 object</param>
/// <param name="spName">存储过程名称</param>
/// <param name="dataRow">使用DataRow作为参数值</param>
/// <returns>返回影响的行数</returns>
public static int ExecuteNonQueryTypedParams(SqlTransaction transaction, String spName, DataRow dataRow)
{
// ExecuteNonQueryTypedParams #3
if (transaction == null) throw new ArgumentNullException("transaction");
if (transaction != null && transaction.Connection == null) throw new ArgumentException("The transaction was rollbacked or commited, please provide an open transaction.", "transaction");
if (spName == null || spName.Length == 0) throw new ArgumentNullException("spName");
// Sf the row has values, the store procedure parameters must be initialized
if (dataRow != null && dataRow.ItemArray.Length > 0)
{
// 从缓存中加载存储过程参数,如果缓存中不存在则从数据库中检索参数信息并加载到缓存中. ()
SqlParameter[] commandParameters = GetSpParameterSet(transaction.Connection, spName);
// 分配参数值
AssignParameterValues(commandParameters, dataRow);
return SqlHelper.ExecuteNonQuery(transaction, CommandType.StoredProcedure, spName, commandParameters);
}
else
{
return SqlHelper.ExecuteNonQuery(transaction, CommandType.StoredProcedure, spName);
}
}
#endregion ExecuteNonQueryTypedParams 类型化参数(DataRow)
#region ExecuteDatasetTypedParams 类型化参数(DataRow)
/// <summary>
/// 执行指定连接数据库连接字符串的存储过程,使用DataRow做为参数值,返回DataSet.
/// </summary>
/// <param name="connectionString">一个有效的数据库连接字符串</param>
/// <param name="spName">存储过程名称</param>
/// <param name="dataRow">使用DataRow作为参数值</param>
/// <returns>返回一个包含结果集的DataSet.</returns>
public static DataSet ExecuteDatasetTypedParams(string connectionString, String spName, DataRow dataRow)
{
// ExecuteDatasetTypedParams #1
if (connectionString == null || connectionString.Length == 0) throw new ArgumentNullException("connectionString");
if (spName == null || spName.Length == 0) throw new ArgumentNullException("spName");
//如果row有值,存储过程必须初始化.
if (dataRow != null && dataRow.ItemArray.Length > 0)
{
// 从缓存中加载存储过程参数,如果缓存中不存在则从数据库中检索参数信息并加载到缓存中. ()
SqlParameter[] commandParameters = GetSpParameterSet(connectionString, spName);
// 分配参数值
AssignParameterValues(commandParameters, dataRow);
return SqlHelper.ExecuteDataset(connectionString, CommandType.StoredProcedure, spName, commandParameters);
}
else
{
return SqlHelper.ExecuteDataset(connectionString, CommandType.StoredProcedure, spName);
}
}
/// <summary>
/// 执行指定连接数据库连接对象的存储过程,使用DataRow做为参数值,返回DataSet.
/// </summary>
/// <param name="connection">一个有效的数据库连接对象</param>
/// <param name="spName">存储过程名称</param>
/// <param name="dataRow">使用DataRow作为参数值</param>
/// <returns>返回一个包含结果集的DataSet.</returns>
public static DataSet ExecuteDatasetTypedParams(SqlConnection connection, String spName, DataRow dataRow)
{
// ExecuteDatasetTypedParams #2
if (connection == null) throw new ArgumentNullException("connection");
if (spName == null || spName.Length == 0) throw new ArgumentNullException("spName");
// 如果row有值,存储过程必须初始化.
if (dataRow != null && dataRow.ItemArray.Length > 0)
{
// 从缓存中加载存储过程参数,如果缓存中不存在则从数据库中检索参数信息并加载到缓存中. ()
SqlParameter[] commandParameters = GetSpParameterSet(connection, spName);
// 分配参数值
AssignParameterValues(commandParameters, dataRow);
return SqlHelper.ExecuteDataset(connection, CommandType.StoredProcedure, spName, commandParameters);
}
else
{
return SqlHelper.ExecuteDataset(connection, CommandType.StoredProcedure, spName);
}
}
/// <summary>
/// 执行指定连接数据库事务的存储过程,使用DataRow做为参数值,返回DataSet.
/// </summary>
/// <param name="transaction">一个有效的连接事务 object</param>
/// <param name="spName">存储过程名称</param>
/// <param name="dataRow">使用DataRow作为参数值</param>
/// <returns>返回一个包含结果集的DataSet.</returns>
public static DataSet ExecuteDatasetTypedParams(SqlTransaction transaction, String spName, DataRow dataRow)
{
// ExecuteDatasetTypedParams #3
if (transaction == null) throw new ArgumentNullException("transaction");
if (transaction != null && transaction.Connection == null) throw new ArgumentException("The transaction was rollbacked or commited, please provide an open transaction.", "transaction");
if (spName == null || spName.Length == 0) throw new ArgumentNullException("spName");
// 如果row有值,存储过程必须初始化.
if (dataRow != null && dataRow.ItemArray.Length > 0)
{
// 从缓存中加载存储过程参数,如果缓存中不存在则从数据库中检索参数信息并加载到缓存中. ()
SqlParameter[] commandParameters = GetSpParameterSet(transaction.Connection, spName);
// 分配参数值
AssignParameterValues(commandParameters, dataRow);
return SqlHelper.ExecuteDataset(transaction, CommandType.StoredProcedure, spName, commandParameters);
}
else
{
return SqlHelper.ExecuteDataset(transaction, CommandType.StoredProcedure, spName);
}
}
#endregion ExecuteDatasetTypedParams 类型化参数(DataRow)
#region ExecuteReaderTypedParams 类型化参数(DataRow)
/// <summary>
/// 执行指定连接数据库连接字符串的存储过程,使用DataRow做为参数值,返回DataReader.
/// </summary>
/// <param name="connectionString">一个有效的数据库连接字符串</param>
/// <param name="spName">存储过程名称</param>
/// <param name="dataRow">使用DataRow作为参数值</param>
/// <returns>返回包含结果集的SqlDataReader</returns>
public static SqlDataReader ExecuteReaderTypedParams(String connectionString, String spName, DataRow dataRow)
{
// ExecuteReaderTypedParams #1
if (connectionString == null || connectionString.Length == 0) throw new ArgumentNullException("connectionString");
if (spName == null || spName.Length == 0) throw new ArgumentNullException("spName");
// 如果row有值,存储过程必须初始化.
if (dataRow != null && dataRow.ItemArray.Length > 0)
{
// 从缓存中加载存储过程参数,如果缓存中不存在则从数据库中检索参数信息并加载到缓存中. ()
SqlParameter[] commandParameters = GetSpParameterSet(connectionString, spName);
// 分配参数值
AssignParameterValues(commandParameters, dataRow);
return SqlHelper.ExecuteReader(connectionString, CommandType.StoredProcedure, spName, commandParameters);
}
else
{
return SqlHelper.ExecuteReader(connectionString, CommandType.StoredProcedure, spName);
}
}
/// <summary>
/// 执行指定连接数据库连接对象的存储过程,使用DataRow做为参数值,返回DataReader.
/// </summary>
/// <param name="connection">一个有效的数据库连接对象</param>
/// <param name="spName">存储过程名称</param>
/// <param name="dataRow">使用DataRow作为参数值</param>
/// <returns>返回包含结果集的SqlDataReader</returns>
public static SqlDataReader ExecuteReaderTypedParams(SqlConnection connection, String spName, DataRow dataRow)
{
// ExecuteReaderTypedParams #2
if (connection == null) throw new ArgumentNullException("connection");
if (spName == null || spName.Length == 0) throw new ArgumentNullException("spName");
// 如果row有值,存储过程必须初始化.
if (dataRow != null && dataRow.ItemArray.Length > 0)
{
// 从缓存中加载存储过程参数,如果缓存中不存在则从数据库中检索参数信息并加载到缓存中. ()
SqlParameter[] commandParameters = GetSpParameterSet(connection, spName);
// 分配参数值
AssignParameterValues(commandParameters, dataRow);
return SqlHelper.ExecuteReader(connection, CommandType.StoredProcedure, spName, commandParameters);
}
else
{
return SqlHelper.ExecuteReader(connection, CommandType.StoredProcedure, spName);
}
}
/// <summary>
/// 执行指定连接数据库事物的存储过程,使用DataRow做为参数值,返回DataReader.
/// </summary>
/// <param name="transaction">一个有效的连接事务 object</param>
/// <param name="spName">存储过程名称</param>
/// <param name="dataRow">使用DataRow作为参数值</param>
/// <returns>返回包含结果集的SqlDataReader</returns>
public static SqlDataReader ExecuteReaderTypedParams(SqlTransaction transaction, String spName, DataRow dataRow)
{
// ExecuteReaderTypedParams #3
if (transaction == null) throw new ArgumentNullException("transaction");
if (transaction != null && transaction.Connection == null) throw new ArgumentException("The transaction was rollbacked or commited, please provide an open transaction.", "transaction");
if (spName == null || spName.Length == 0) throw new ArgumentNullException("spName");
// 如果row有值,存储过程必须初始化.
if (dataRow != null && dataRow.ItemArray.Length > 0)
{
// 从缓存中加载存储过程参数,如果缓存中不存在则从数据库中检索参数信息并加载到缓存中. ()
SqlParameter[] commandParameters = GetSpParameterSet(transaction.Connection, spName);
// 分配参数值
AssignParameterValues(commandParameters, dataRow);
return SqlHelper.ExecuteReader(transaction, CommandType.StoredProcedure, spName, commandParameters);
}
else
{
return SqlHelper.ExecuteReader(transaction, CommandType.StoredProcedure, spName);
}
}
#endregion ExecuteReaderTypedParams 类型化参数(DataRow)
#region ExecuteScalarTypedParams 类型化参数(DataRow)
/// <summary>
/// 执行指定连接数据库连接字符串的存储过程,使用DataRow做为参数值,返回结果集中的第一行第一列.
/// </summary>
/// <param name="connectionString">一个有效的数据库连接字符串</param>
/// <param name="spName">存储过程名称</param>
/// <param name="dataRow">使用DataRow作为参数值</param>
/// <returns>返回结果集中的第一行第一列</returns>
public static object ExecuteScalarTypedParams(String connectionString, String spName, DataRow dataRow)
{
// ExecuteScalarTypedParams #1
if (connectionString == null || connectionString.Length == 0) throw new ArgumentNullException("connectionString");
if (spName == null || spName.Length == 0) throw new ArgumentNullException("spName");
// 如果row有值,存储过程必须初始化.
if (dataRow != null && dataRow.ItemArray.Length > 0)
{
// 从缓存中加载存储过程参数,如果缓存中不存在则从数据库中检索参数信息并加载到缓存中. ()
SqlParameter[] commandParameters = GetSpParameterSet(connectionString, spName);
// 分配参数值
AssignParameterValues(commandParameters, dataRow);
return SqlHelper.ExecuteScalar(connectionString, CommandType.StoredProcedure, spName, commandParameters);
}
else
{
return SqlHelper.ExecuteScalar(connectionString, CommandType.StoredProcedure, spName);
}
}
/// <summary>
/// 执行指定连接数据库连接对象的存储过程,使用DataRow做为参数值,返回结果集中的第一行第一列.
/// </summary>
/// <param name="connection">一个有效的数据库连接对象</param>
/// <param name="spName">存储过程名称</param>
/// <param name="dataRow">使用DataRow作为参数值</param>
/// <returns>返回结果集中的第一行第一列</returns>
public static object ExecuteScalarTypedParams(SqlConnection connection, String spName, DataRow dataRow)
{
// ExecuteScalarTypedParams #2
if (connection == null) throw new ArgumentNullException("connection");
if (spName == null || spName.Length == 0) throw new ArgumentNullException("spName");
// 如果row有值,存储过程必须初始化.
if (dataRow != null && dataRow.ItemArray.Length > 0)
{
// 从缓存中加载存储过程参数,如果缓存中不存在则从数据库中检索参数信息并加载到缓存中. ()
SqlParameter[] commandParameters = GetSpParameterSet(connection, spName);
// 分配参数值
AssignParameterValues(commandParameters, dataRow);
return SqlHelper.ExecuteScalar(connection, CommandType.StoredProcedure, spName, commandParameters);
}
else
{
return SqlHelper.ExecuteScalar(connection, CommandType.StoredProcedure, spName);
}
}
/// <summary>
/// 执行指定连接数据库事务的存储过程,使用DataRow做为参数值,返回结果集中的第一行第一列.
/// </summary>
/// <param name="transaction">一个有效的连接事务 object</param>
/// <param name="spName">存储过程名称</param>
/// <param name="dataRow">使用DataRow作为参数值</param>
/// <returns>返回结果集中的第一行第一列</returns>
public static object ExecuteScalarTypedParams(SqlTransaction transaction, String spName, DataRow dataRow)
{
// ExecuteScalarTypedParams #3
if (transaction == null) throw new ArgumentNullException("transaction");
if (transaction != null && transaction.Connection == null) throw new ArgumentException("The transaction was rollbacked or commited, please provide an open transaction.", "transaction");
if (spName == null || spName.Length == 0) throw new ArgumentNullException("spName");
// 如果row有值,存储过程必须初始化.
if (dataRow != null && dataRow.ItemArray.Length > 0)
{
// 从缓存中加载存储过程参数,如果缓存中不存在则从数据库中检索参数信息并加载到缓存中. ()
SqlParameter[] commandParameters = GetSpParameterSet(transaction.Connection, spName);
// 分配参数值
AssignParameterValues(commandParameters, dataRow);
return SqlHelper.ExecuteScalar(transaction, CommandType.StoredProcedure, spName, commandParameters);
}
else
{
return SqlHelper.ExecuteScalar(transaction, CommandType.StoredProcedure, spName);
}
}
#endregion ExecuteScalarTypedParams 类型化参数(DataRow)
#region ExecuteXmlReaderTypedParams 类型化参数(DataRow)
/// <summary>
/// 执行指定连接数据库连接对象的存储过程,使用DataRow做为参数值,返回XmlReader类型的结果集.
/// </summary>
/// <param name="connection">一个有效的数据库连接对象</param>
/// <param name="spName">存储过程名称</param>
/// <param name="dataRow">使用DataRow作为参数值</param>
/// <returns>返回XmlReader结果集对象.</returns>
public static XmlReader ExecuteXmlReaderTypedParams(SqlConnection connection, String spName, DataRow dataRow)
{
// ExecuteXmlReaderTypedParams #1
if (connection == null) throw new ArgumentNullException("connection");
if (spName == null || spName.Length == 0) throw new ArgumentNullException("spName");
// 如果row有值,存储过程必须初始化.
if (dataRow != null && dataRow.ItemArray.Length > 0)
{
// 从缓存中加载存储过程参数,如果缓存中不存在则从数据库中检索参数信息并加载到缓存中. ()
SqlParameter[] commandParameters = GetSpParameterSet(connection, spName);
// 分配参数值
AssignParameterValues(commandParameters, dataRow);
return SqlHelper.ExecuteXmlReader(connection, CommandType.StoredProcedure, spName, commandParameters);
}
else
{
return SqlHelper.ExecuteXmlReader(connection, CommandType.StoredProcedure, spName);
}
}
/// <summary>
/// 执行指定连接数据库事务的存储过程,使用DataRow做为参数值,返回XmlReader类型的结果集.
/// </summary>
/// <param name="transaction">一个有效的连接事务 object</param>
/// <param name="spName">存储过程名称</param>
/// <param name="dataRow">使用DataRow作为参数值</param>
/// <returns>返回XmlReader结果集对象.</returns>
public static XmlReader ExecuteXmlReaderTypedParams(SqlTransaction transaction, String spName, DataRow dataRow)
{
// ExecuteXmlReaderTypedParams #2
if (transaction == null) throw new ArgumentNullException("transaction");
if (transaction != null && transaction.Connection == null) throw new ArgumentException("The transaction was rollbacked or commited, please provide an open transaction.", "transaction");
if (spName == null || spName.Length == 0) throw new ArgumentNullException("spName");
// 如果row有值,存储过程必须初始化.
if (dataRow != null && dataRow.ItemArray.Length > 0)
{
// 从缓存中加载存储过程参数,如果缓存中不存在则从数据库中检索参数信息并加载到缓存中. ()
SqlParameter[] commandParameters = GetSpParameterSet(transaction.Connection, spName);
// 分配参数值
AssignParameterValues(commandParameters, dataRow);
return SqlHelper.ExecuteXmlReader(transaction, CommandType.StoredProcedure, spName, commandParameters);
}
else
{
return SqlHelper.ExecuteXmlReader(transaction, CommandType.StoredProcedure, spName);
}
}
#endregion ExecuteXmlReaderTypedParams 类型化参数(DataRow)
#region private methods, variables, and constructors
//Since this class provides only static methods, make the default constructor private to prevent
//instances from being created with "new SqlHelperParameterCache()"
//private SqlHelperParameterCache() { }
private static Hashtable paramCache = Hashtable.Synchronized(new Hashtable());
/// <summary>
/// Resolve at run time the appropriate set of SqlParameters for a stored procedure
/// </summary>
/// <param name="connection">A valid SqlConnection object</param>
/// <param name="spName">The name of the stored procedure</param>
/// <param name="includeReturnValueParameter">Whether or not to include their return value parameter</param>
/// <returns>The parameter array discovered.</returns>
private static SqlParameter[] DiscoverSpParameterSet(SqlConnection connection, string spName, bool includeReturnValueParameter)
{
if (connection == null) throw new ArgumentNullException("connection");
if (spName == null || spName.Length == 0) throw new ArgumentNullException("spName");
SqlCommand cmd = new SqlCommand(spName, connection);
cmd.CommandTimeout = CommandTimeOut;
cmd.CommandType = CommandType.StoredProcedure;
//IntelnetConnState.HasNetworkAlive();
connection.Open();
SqlCommandBuilder.DeriveParameters(cmd);
connection.Close();
if (!includeReturnValueParameter)
{
cmd.Parameters.RemoveAt(0);
}
SqlParameter[] discoveredParameters = new SqlParameter[cmd.Parameters.Count];
cmd.Parameters.CopyTo(discoveredParameters, 0);
// Init the parameters with a DBNull value
foreach (SqlParameter discoveredParameter in discoveredParameters)
{
discoveredParameter.Value = DBNull.Value;
}
return discoveredParameters;
}
/// <summary>
/// Deep copy of cached SqlParameter array
/// </summary>
/// <param name="originalParameters"></param>
/// <returns></returns>
private static SqlParameter[] CloneParameters(SqlParameter[] originalParameters)
{
SqlParameter[] clonedParameters = new SqlParameter[originalParameters.Length];
for (int i = 0, j = originalParameters.Length; i < j; i++)
{
clonedParameters[i] = (SqlParameter)((ICloneable)originalParameters[i]).Clone();
}
return clonedParameters;
}
#endregion private methods, variables, and constructors
#region caching functions
/// <summary>
/// Add parameter array to the cache
/// </summary>
/// <param name="connectionString">A valid connection string for a SqlConnection</param>
/// <param name="commandText">The stored procedure name or T-SQL command</param>
/// <param name="commandParameters">An array of SqlParamters to be cached</param>
public static void CacheParameterSet(string connectionString, string commandText, params SqlParameter[] commandParameters)
{
if (connectionString == null || connectionString.Length == 0) throw new ArgumentNullException("connectionString");
if (commandText == null || commandText.Length == 0) throw new ArgumentNullException("commandText");
string hashKey = connectionString + ":" + commandText;
paramCache[hashKey] = commandParameters;
}
/// <summary>
/// Retrieve a parameter array from the cache
/// </summary>
/// <param name="connectionString">A valid connection string for a SqlConnection</param>
/// <param name="commandText">The stored procedure name or T-SQL command</param>
/// <returns>An array of SqlParamters</returns>
public static SqlParameter[] GetCachedParameterSet(string connectionString, string commandText)
{
if (connectionString == null || connectionString.Length == 0) throw new ArgumentNullException("connectionString");
if (commandText == null || commandText.Length == 0) throw new ArgumentNullException("commandText");
string hashKey = connectionString + ":" + commandText;
SqlParameter[] cachedParameters = paramCache[hashKey] as SqlParameter[];
if (cachedParameters == null)
{
return null;
}
else
{
return CloneParameters(cachedParameters);
}
}
#endregion caching functions
#region Parameter Discovery Functions
/// <summary>
/// Retrieves the set of SqlParameters appropriate for the stored procedure
/// </summary>
/// <remarks>
/// This method will query the database for this information, and then store it in a cache for future requests.
/// </remarks>
/// <param name="connectionString">A valid connection string for a SqlConnection</param>
/// <param name="spName">The name of the stored procedure</param>
/// <returns>An array of SqlParameters</returns>
public static SqlParameter[] GetSpParameterSet(string connectionString, string spName)
{
return GetSpParameterSet(connectionString, spName, false);
}
/// <summary>
/// Retrieves the set of SqlParameters appropriate for the stored procedure
/// </summary>
/// <remarks>
/// This method will query the database for this information, and then store it in a cache for future requests.
/// </remarks>
/// <param name="connectionString">A valid connection string for a SqlConnection</param>
/// <param name="spName">The name of the stored procedure</param>
/// <param name="includeReturnValueParameter">A bool value indicating whether the return value parameter should be included in the results</param>
/// <returns>An array of SqlParameters</returns>
public static SqlParameter[] GetSpParameterSet(string connectionString, string spName, bool includeReturnValueParameter)
{
if (connectionString == null || connectionString.Length == 0) throw new ArgumentNullException("connectionString");
if (spName == null || spName.Length == 0) throw new ArgumentNullException("spName");
using (SqlConnection connection = new SqlConnection(connectionString))
{
return GetSpParameterSetInternal(connection, spName, includeReturnValueParameter);
}
}
/// <summary>
/// Retrieves the set of SqlParameters appropriate for the stored procedure
/// </summary>
/// <remarks>
/// This method will query the database for this information, and then store it in a cache for future requests.
/// </remarks>
/// <param name="connection">A valid SqlConnection object</param>
/// <param name="spName">The name of the stored procedure</param>
/// <returns>An array of SqlParameters</returns>
internal static SqlParameter[] GetSpParameterSet(SqlConnection connection, string spName)
{
return GetSpParameterSet(connection, spName, false);
}
/// <summary>
/// Retrieves the set of SqlParameters appropriate for the stored procedure
/// </summary>
/// <remarks>
/// This method will query the database for this information, and then store it in a cache for future requests.
/// </remarks>
/// <param name="connection">A valid SqlConnection object</param>
/// <param name="spName">The name of the stored procedure</param>
/// <param name="includeReturnValueParameter">A bool value indicating whether the return value parameter should be included in the results</param>
/// <returns>An array of SqlParameters</returns>
internal static SqlParameter[] GetSpParameterSet(SqlConnection connection, string spName, bool includeReturnValueParameter)
{
if (connection == null) throw new ArgumentNullException("connection");
using (SqlConnection clonedConnection = (SqlConnection)((ICloneable)connection).Clone())
{
return GetSpParameterSetInternal(clonedConnection, spName, includeReturnValueParameter);
}
}
/// <summary>
/// Retrieves the set of SqlParameters appropriate for the stored procedure
/// </summary>
/// <param name="connection">A valid SqlConnection object</param>
/// <param name="spName">The name of the stored procedure</param>
/// <param name="includeReturnValueParameter">A bool value indicating whether the return value parameter should be included in the results</param>
/// <returns>An array of SqlParameters</returns>
private static SqlParameter[] GetSpParameterSetInternal(SqlConnection connection, string spName, bool includeReturnValueParameter)
{
if (connection == null) throw new ArgumentNullException("connection");
if (spName == null || spName.Length == 0) throw new ArgumentNullException("spName");
string hashKey = connection.ConnectionString + ":" + spName + (includeReturnValueParameter ? ":include ReturnValue Parameter" : "");
SqlParameter[] cachedParameters;
cachedParameters = paramCache[hashKey] as SqlParameter[];
if (cachedParameters == null)
{
SqlParameter[] spParameters = DiscoverSpParameterSet(connection, spName, includeReturnValueParameter);
paramCache[hashKey] = spParameters;
cachedParameters = spParameters;
}
return CloneParameters(cachedParameters);
}
#endregion Parameter Discovery Functions
#region 批量操作
/// <summary>
/// 大批量数据插入
/// </summary>
/// <param name="table">数据表</param>
public static void BulkInsert( DataTable table)
{
if (cStr == null || cStr.Length == 0) throw new ArgumentNullException("connectionString");
BulkInsert(cStr, table);
}
/// <summary>
/// 大批量数据插入
/// </summary>
/// <param name="connectionString">数据库连接字符串</param>
/// <param name="table">数据表</param>
public static void BulkInsert(string connectionString, DataTable table)
{
if (connectionString == null || connectionString.Length == 0) throw new ArgumentNullException("connectionString");
if (string.IsNullOrEmpty(table.TableName)) throw new Exception("DataTable.TableName属性不能为空");
using (SqlBulkCopy bulk = new SqlBulkCopy(connectionString))
{
bulk.BatchSize = BatchSize;
bulk.BulkCopyTimeout = CommandTimeOut;
bulk.DestinationTableName = table.TableName;
foreach (DataColumn col in table.Columns)
{
bulk.ColumnMappings.Add(col.ColumnName, col.ColumnName);
}
bulk.WriteToServer(table);
bulk.Close();
}
}
/// <summary>
/// 使用MySqlDataAdapter批量更新数据
/// </summary>
/// <param name="table">数据表</param>
public static void BatchUpdate(DataTable table)
{
if (cStr == null || cStr.Length == 0) throw new ArgumentNullException("connectionString");
BatchUpdate(cStr, table);
}
/// <summary>
/// 使用MySqlDataAdapter批量更新数据
/// </summary>
/// <param name="connectionString">数据库连接字符串</param>
/// <param name="table">数据表</param>
public static void BatchUpdate(string connectionString, DataTable table)
{
if (connectionString == null || connectionString.Length == 0) throw new ArgumentNullException("connectionString");
SqlConnection connection = new SqlConnection(connectionString);
SqlCommand command = connection.CreateCommand();
command.CommandTimeout = CommandTimeOut;
command.CommandType = CommandType.Text;
SqlDataAdapter adapter = new SqlDataAdapter(command);
SqlCommandBuilder commandBulider = new SqlCommandBuilder(adapter);
commandBulider.ConflictOption = ConflictOption.OverwriteChanges;
SqlTransaction transaction = null;
try
{
connection.Open();
transaction = connection.BeginTransaction();
//设置批量更新的每次处理条数
adapter.UpdateBatchSize = BatchSize;
//设置事物
adapter.SelectCommand.Transaction = transaction;
if (table.ExtendedProperties["SQL"] != null)
{
adapter.SelectCommand.CommandText = table.ExtendedProperties["SQL"].ToString();
}
adapter.Update(table);
transaction.Commit();/////提交事务
}
catch (SqlException ex)
{
if (transaction != null) transaction.Rollback();
throw ex;
}
finally
{
connection.Close();
connection.Dispose();
}
}
/// <summary>
/// 分批次批量删除数据
/// </summary>
/// <param name="connectionString">数据库连接字符串</param>
/// <param name="sql">SQL语句</param>
/// <param name="batchSize">每批次更新记录行数</param>
/// <param name="interval">批次执行间隔(秒)</param>
public static void BatchDelete(string connectionString, string sql, int batchSize = 1000, int interval = 1)
{
sql = sql.ToLower();
if (batchSize < 1000) batchSize = 1000;
if (interval < 1) interval = 1;
while (ExecuteScalar(connectionString, sql.Replace("delete", "select top 1 1")) != null)
{
ExecuteNonQuery(connectionString, CommandType.Text, sql.Replace("delete", string.Format("delete top ({0})", batchSize)));
System.Threading.Thread.Sleep(interval * 1000);
}
}
/// <summary>
/// 分批次批量更新数据
/// </summary>
/// <param name="connectionString">数据库连接字符串</param>
/// <param name="sql">SQL语句</param>
/// <param name="batchSize">每批次更新记录行数</param>
/// <param name="interval">批次执行间隔(秒)</param>
public static void BatchUpdate(string connectionString, string sql, int batchSize = 1000, int interval = 1)
{
if (batchSize < 1000) batchSize = 1000;
if (interval < 1) interval = 1;
string existsSql = Regex.Replace(sql, @"[ws.=,']*from", "select top 1 1 from", RegexOptions.IgnoreCase);
existsSql = Regex.Replace(existsSql, @"set[ws.=,']* where", "where", RegexOptions.IgnoreCase);
existsSql = Regex.Replace(existsSql, @"update", "select top 1 1 from", RegexOptions.IgnoreCase);
while (ExecuteScalar<int>(connectionString, existsSql) != 0)
{
ExecuteNonQuery(connectionString, CommandType.Text, Regex.Replace(sql, "update", string.Format("update top ({0})", batchSize), RegexOptions.IgnoreCase));
System.Threading.Thread.Sleep(interval * 1000);
}
}
#endregion 批量操作
}
}