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c语言mysql数据库事务开始、提交、回滚范例_MySQL

WBOY
WBOYOriginal
2016-06-01 12:58:522631browse

1、 事务提交模式修改:修改数据库提交模式为0[手动提交]

memset ( sql, 0x00, sizeof( sql ) );

memcpy ( sql, "set autocommit=0;", 17 );

if( mysql_query( sock, sql ) ){

sprintf( g_acTrcMsg, "关闭自动提交模式失败[%d][%s]", mysql_errno( sock ), mysql_error( sock ) );TRCLOG1

return -1;

}

 

2、 事务开始

memset ( sql, 0x00, sizeof( sql ) );

memcpy ( sql, "start transaction;", 18 );

if( mysql_query( sock, sql ) ){

sprintf( g_acTrcMsg, "建立事务失败[%d][%s]", mysql_errno( sock ), mysql_error( sock ) );TRCLOG1

return -1;

}

 

3、 事务回滚

memset ( sql, 0x00, sizeof( sql ) );

memcpy ( sql, "rollback;", 9 );

if( mysql_query( sock, sql ) ){

sprintf( g_acTrcMsg, "事务回滚失败[%d][%s]", mysql_errno( sock ), mysql_error( sock ) );TRCLOG1

return -1;

}

 

 

4、 事务提交

memset ( sql, 0x00, sizeof( sql ) );

memcpy ( sql, "commit;", 7 );

if( mysql_query( sock, sql ) ){

sprintf( g_acTrcMsg, "提交事务失败[%d][%s]\n", mysql_errno( sock ), mysql_error( sock ) );TRCLOG1

return -1;

}

 

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