备份：use master;backup database @name to disk=@path;
恢复：use master;restore database @name from disk=@path;
上面用的是参数化SQL语句，可以在程序执行的时候动态给参数赋值。
.aspx代码：
| <%@ Page Language="C#" AutoEventWireup="true" CodeFile="DatabaseAction.aspx.cs" Inherits="DatabaseAction" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" > <head runat="server"> <title>无标题页</title> </head> <body> <form id="form1" runat="server"> <div> <table border="0" width="100%"> <tr><td colspan="2">数据库还原和备份</td></tr> <tr><td>请选择数据库</td><td> <asp:DropDownList ID="ddlDatabaseList" runat="server"> </asp:DropDownList></td></tr> <tr><td> 数据库文件名</td><td> <asp:TextBox ID="txtDbFileName" runat="server"></asp:TextBox></td></tr> <tr><td> 操作选项</td><td> <asp:RadioButton ID="rbBackup" runat="server" Checked="True" GroupName="action" Text="备份" /> <asp:RadioButton ID="rbRestore" runat="server" GroupName="action" Text="还原" /></td></tr> <tr><td> 操作</td><td> <asp:Button ID="btnOK" runat="server" OnClick="btnOK_Click" Text="执行" /></td></tr> </table> </div> </form> </body> </html> |
.cs代码
| using System; using System.Data; using System.Configuration; using System.Collections; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Web.UI.HtmlControls; using System.Data.SqlClient; /// <summary> /// 功能说明：本例中演示在asp.net中如何备份和恢复数据库 /// 备份数据库主要使用数据库的备份语句。数据库备份文件放在 /// App_Data文件夹下。 /// 作者：周公 /// 日期：2008-08-19 /// 首发地址：http://blog.csdn.net/zhoufoxcn/archive/2008/08/19/2796077.aspx /// </summary> public partial class DatabaseAction : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { if (!Page.IsPostBack) { //在DropDownList中绑定所有数据库 SqlConnection connection = new SqlConnection("Data Source=ZHOUFOXCN;User ID=sa;Password=sa"); SqlCommand command = new SqlCommand("sp_helpdb", connection); command.CommandType = CommandType.StoredProcedure; connection.Open(); SqlDataReader reader = command.ExecuteReader(); ddlDatabaseList.DataSource = reader; ddlDatabaseList.DataTextField = "Name"; ddlDatabaseList.DataBind(); reader.Close(); connection.Close(); } } protected void btnOK_Click(object sender, EventArgs e) { string dbFileName = txtDbFileName.Text.Trim(); SqlConnection connection = new SqlConnection("Data Source=ZHOUFOXCN;User ID=sa;Password=sa"); string dbName = ddlDatabaseList.SelectedValue; if (!dbFileName.EndsWith(".bak")) { dbFileName += ".bak"; } if (rbBackup.Checked)//备份数据库 { SqlCommand command = new SqlCommand("use master;backup database @name to disk=@path;",connection); connection.Open(); string path=Server.MapPath("~\\App_Data")+"\\"+dbFileName; command.Parameters.AddWithValue("@name", dbName); command.Parameters.AddWithValue("@path", path); command.ExecuteNonQuery(); connection.Close(); } else//恢复数据库 { SqlCommand command = new SqlCommand("use master;restore database @name from disk=@path;", connection); connection.Open(); string path = Server.MapPath("~\\App_Data") + "\\" + dbFileName; command.Parameters.AddWithValue("@name", dbName); command.Parameters.AddWithValue("@path", path); command.ExecuteNonQuery(); connection.Close(); } } } |