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  • MySql.Data.MySqlClient方法连接mysql以及使用

    mysqlCommand 方法

    public static string connstr = "User Id=root;pwd= ;Host=localhost;Port=3306;Database=textbooks;Character Set=utf8";

    MysqlConnection conn=MysqlConnection(connstr);

    MysqlCommand command=new MysqlCommand(sql,conn);

    ExecuteScalar:   command.ExecuteScalar();返回object,是否有数据

    ExecuteReader:   command.ExecuteReader();返回MySqlDataReader类型mySqlRdr对象;

    获取值

    while (mySqlRdr.Read())
    {
    Console.WriteLine(mySqlRdr.GetString(0));

    }

    MySqlDataAdapter查询方法

    MySqlDataAdapter adr=new MySqlDataAdapter(sql,conn);//不用command

    DataSet T = new DataSet();
    adr.Fill(T,"table1");
    //this.dataGridView1.DataSource = ds.Tables["table1"];

    DataTableReader dtr = T.CreateDataReader();

    while (dtr.Read())
    {

    Console.WriteLine(dtr[0] + "###" + dtr.GetValue(1));

    }

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  • 原文地址:https://www.cnblogs.com/yinyinfurong/p/3690811.html
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