Question

string InsertQuery = ""; 
                     MySqlTransaction transaction;
               MySqlConnection con1 = new MySqlConnection();
                     MySqlDataAdapter ODA;
                     string server = loggerConnectionString.servername;
con1.ConnectionString ="server="localhost";uid=root;pwd=;database=globasys;";

                     con1.Open();
                     transaction = con1.BeginTransaction();

                     ODA = new MySqlDataAdapter();

                     InsertQuery = "Insert into tr_config_unit_params " + Environment.NewLine;
                     InsertQuery += "(unit_param_id,unit_id, unit_param_desc, unit_param_opc_progid, unit_param_host, unit_param_link, unit_param_data_type, unit_param_type) " + Environment.NewLine;
                     InsertQuery += " VALUES(@unit_param_id,@unit_id,@unit_param_desc, @unit_param_opc_progid, @unit_param_host, @unit_param_link, @unit_param_data_type, @unit_param_type)";;
                     ODA.InsertCommand =new   MySqlCommand(InsertQuery, con1);
                     ODA.InsertCommand.Parameters.Add("@unit_param_id", MySqlDbType.Int32);
                     ODA.InsertCommand.Parameters.Add("@unit_id"", MySqlDbType.Int32);
                     ODA.InsertCommand.Parameters.Add("@unit_param_desc", MySqlDbType.VarChar);
                     ODA.InsertCommand.Parameters.Add("@unit_param_opc_progid", MySqlDbType.VarChar);
                     ODA.InsertCommand.Parameters.Add("@unit_param_host", MySqlDbType.VarChar);
                     ODA.InsertCommand.Parameters.Add("@unit_param_link", MySqlDbType.VarChar);
                     ODA.InsertCommand.Parameters.Add("@unit_param_data_type", MySqlDbType.Int32);
                     ODA.InsertCommand.Parameters.Add("@unit_param_type", MySqlDbType.Int32);

                     ODA.InsertCommand.Transaction = transaction;

                     DataSet ds = new DataSet();
                     ds = dt;

                  int y=   ODA.Update(dt,"tr_config_unit_params");


                     transaction.Commit();
                  con1.Close();

我使用Mysqldataadapter.update（）插入150000行，但查询执行成功，但MYSQL中的数据库表中没有行插入

提前感谢.....

Answer 1

MySqlDataAdapter的更新功能已重载。为指定DataSet中每个插入，更新或删除的行调用相应的INSERT，UPDATE或DELETE语句。

因此，您可以使用以下代码：

string conn = "server="localhost";uid=root;pwd=;database=globasys;";

using (MySqlConnection con1 = new MySqlConnection(conn))
{
con1.Open();

MySqlTransaction transaction = con1.BeginTransaction();

string InsertQuery = "Insert into tr_config_unit_params " + Environment.NewLine;
InsertQuery += "(unit_param_id,unit_id, unit_param_desc, unit_param_opc_progid, unit_param_host, unit_param_link, unit_param_data_type, unit_param_type) " + Environment.NewLine;
InsertQuery += " VALUES(@unit_param_id,@unit_id,@unit_param_desc, @unit_param_opc_progid, @unit_param_host, @unit_param_link, @unit_param_data_type, @unit_param_type)";;

MySqlCommand command = new MySqlCommand(InsertQuery, con1);
command.Transaction = transaction;

try
{
    //dt is a DataTable
    foreach(DataRow dataRow in dt)
    {
        command.Parameters.Clear()
        command.Parameters.AddWithValue("@unit_param_id", dataRow["unit_param_id"]);
        command.Parameters.AddWithValue("@unit_id", dataRow["unit_id"]);
        command.Parameters.AddWithValue("@unit_param_desc", dataRow["unit_param_desc"]);
        command.Parameters.AddWithValue("@unit_param_opc_progid", dataRow["unit_param_opc_progid"]);
        command.Parameters.AddWithValue("@unit_param_host", dataRow["unit_param_host"]);
        command.Parameters.AddWithValue("@unit_param_link", dataRow["unit_param_link"]);
        command.Parameters.AddWithValue("@unit_param_data_type", dataRow["unit_param_data_type"]);
        command.Parameters.AddWithValue("@unit_param_type", dataRow["unit_param_type"]);

        command.ExecuteNonQuery();
    }

    transaction.Commit();
}
catch(MySqlException mySqlEx)
{
    transaction.Rollback();

    throw mySqlEx;
}
}

使用Mysqldataadapter.update（）插入值

1 个答案: