public static DataTable ExecuteDataTable(string SQLString, ref MySql_Pool mypool)
{
MySqlConnection connection = mypool.BorrowDBConnection();
DataSet ds = new DataSet();
try
{
MySqlCommand cmd = new MySqlCommand();
cmd.Connection = connection;
cmd.CommandText = SQLString;
cmd.CommandType = CommandType.Text;//cmdTyp
cmd.CommandTimeout = 3600;
MySqlDataAdapter command = new MySqlDataAdapter(cmd);
//MySqlDataAdapter command = new MySqlDataAdapter(SQLString, connection);
command.Fill(ds, "ds");
mypool.ReturnDBConnection(connection);
}
catch (MySql.Data.MySqlClient.MySqlException ex)
{
mypool.ReturnDBConnection(connection);
throw new Exception(ex.Message);
}
return(ds.Tables[0]);
}
/// <summary>
/// 执行一条计算查询结果语句，返回查询结果（object）。
/// </summary>
/// <param name="SQLString">计算查询结果语句</param>
/// <returns>查询结果（object）</returns>
public static object ExecuteScalar(string SQLString, ref MySql_Pool mypool, params MySqlParameter[] cmdParms)
{
MySqlConnection connection = mypool.BorrowDBConnection();
using (MySqlCommand cmd = new MySqlCommand())
{
try
{
PrepareCommand(cmd, connection, null, SQLString, cmdParms);
object obj = cmd.ExecuteScalar();
mypool.ReturnDBConnection(connection);
cmd.Parameters.Clear();
if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value)))
{
return(null);
}
else
{
return(obj);
}
}
catch (MySql.Data.MySqlClient.MySqlException e)
{
mypool.ReturnDBConnection(connection);
throw e;
}
}
}
/// <summary>
/// 执行一条计算查询结果语句，返回查询结果（object）。
/// </summary>
/// <param name="SQLString">计算查询结果语句</param>
/// <returns>查询结果（object）</returns>
public static object ExecuteScalar(string SQLString, ref MySql_Pool mypool)
{
MySqlConnection connection = mypool.BorrowDBConnection();
using (MySqlCommand cmd = new MySqlCommand(SQLString, connection))
{
try
{
cmd.CommandTimeout = 3600;
object obj = cmd.ExecuteScalar();
mypool.ReturnDBConnection(connection);
if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value)))
{
return(null);
}
else
{
return(obj);
}
}
catch (MySql.Data.MySqlClient.MySqlException e)
{
mypool.ReturnDBConnection(connection);
throw e;
}
}
}
public static bool ExecuteNoQueryTran(List <String> SQLStringList, ref MySql_Pool mypool)
{
MySqlConnection conn = mypool.BorrowDBConnection();
MySqlCommand cmd = new MySqlCommand();
cmd.Connection = conn;
MySqlTransaction tx = conn.BeginTransaction();
cmd.Transaction = tx;
try
{
for (int n = 0; n < SQLStringList.Count; n++)
{
string strsql = SQLStringList[n];
if (strsql.Trim().Length > 1)
{
cmd.CommandText = strsql;
PrepareCommand(cmd, conn, tx, strsql, null);
cmd.ExecuteNonQuery();
}
}
cmd.ExecuteNonQuery();
tx.Commit();
return(true);
}
catch
{
tx.Rollback();
mypool.ReturnDBConnection(conn);
return(false);
}
}
public static void Transaction(List <string> list, ref MySql_Pool mypool)
{
MySqlConnection connection = mypool.BorrowDBConnection();
MySqlTransaction myTrans = connection.BeginTransaction();
try
{
MySqlCommand cmd = new MySqlCommand();
cmd.Connection = connection;
cmd.Transaction = myTrans;
foreach (string SQLString in list)
{
cmd.CommandText = SQLString;
int rows = cmd.ExecuteNonQuery();
}
// cmd.ExecuteNonQuery();
myTrans.Commit();
}
catch (Exception e)
{
myTrans.Rollback();//遇到错误，回滚
mypool.ReturnDBConnection(connection);
throw e;
}
}
//执行SQL语句，返回影响的记录数
/// <summary>
/// 执行SQL语句，返回影响的记录数
/// </summary>
/// <param name="SQLString">SQL语句</param>
/// <returns>影响的记录数</returns>
public static int ExecuteNonQuery(string SQLString, ref MySql_Pool mypool)
{
MySqlConnection connection = mypool.BorrowDBConnection();
using (MySqlCommand cmd = new MySqlCommand(SQLString, connection))
{
try
{
cmd.CommandTimeout = 7600;
int rows = cmd.ExecuteNonQuery();
mypool.ReturnDBConnection(connection);
return(rows);
}
catch (MySql.Data.MySqlClient.MySqlException e)
{
mypool.ReturnDBConnection(connection);
throw e;
}
}
}
//public static void ExecuteNonQuery(ref List<mysqlstrut> list, ref MySql_Pool mypool)
//{
// MySqlConnection connection = mypool.BorrowDBConnection();
// try
// {
// foreach (mysqlstrut msql in list)
// {
// error_sql = msql.sql;
// using (MySqlCommand cmd = new MySqlCommand(msql.sql, connection))
// {
// try
// {
// cmd.CommandTimeout = 3600;
// cmd.ExecuteNonQuery();
// }
// catch
// {
// MySqlCommand cmd1 = new MySqlCommand(msql.sql1, connection);
// cmd1.CommandTimeout = 3600;
// cmd1.ExecuteNonQuery();
// Program.my_log(msql.sql);
// }
// //return rows;
// }
// }
// mypool.ReturnDBConnection(connection);
// }
// catch (MySql.Data.MySqlClient.MySqlException e)
// {
// Program.my_log(error_sql);
// mypool.ReturnDBConnection(connection);
// throw e;
// }
//}
public static int ExecuteNonQuery(string SQLString, ref MySql_Pool mypool, params MySqlParameter[] cmdParms)
{
MySqlConnection connection = mypool.BorrowDBConnection();
using (MySqlCommand cmd = new MySqlCommand())
{
try
{
PrepareCommand(cmd, connection, null, SQLString, cmdParms);
int rows = cmd.ExecuteNonQuery();
cmd.Parameters.Clear();
mypool.ReturnDBConnection(connection);
return(rows);
}
catch (MySql.Data.MySqlClient.MySqlException e)
{
mypool.ReturnDBConnection(connection);
throw e;
}
}
}
/// <summary>
/// 执行查询语句，返回DataSet
/// </summary>
/// <param name="SQLString">查询语句</param>
/// <returns>DataTable</returns>
public static DataTable ExecuteDataTable(string SQLString, ref MySql_Pool mypool, params MySqlParameter[] cmdParms)
{
MySqlConnection connection = mypool.BorrowDBConnection();
MySqlCommand cmd = new MySqlCommand();
cmd.CommandTimeout = 3600;
PrepareCommand(cmd, connection, null, SQLString, cmdParms);
using (MySqlDataAdapter da = new MySqlDataAdapter(cmd))
{
DataSet ds = new DataSet();
try
{
da.Fill(ds, "ds");
cmd.Parameters.Clear();
mypool.ReturnDBConnection(connection);
}
catch (MySql.Data.MySqlClient.MySqlException ex)
{
mypool.ReturnDBConnection(connection);
throw new Exception(ex.Message);
}
return(ds.Tables[0]);
}
}