各位师父兄弟姐妹们，为什么我连上了MYSQL 5,却不能打开记录集啊？

Question

是ADO链接数据库：
sprintf(m_sqlStrSourceTable, "Driver={MySQL Connector/ODBC v5};Server=localhost;Port=3305;Option=16384;Database=information_schema;UID=root;PWD=");
hResult=m_pSourceTBConnection->Open(m_sqlStrSourceTable,"","",VekeeADO::adConnectUnspecified);打开记录集：szTemp = "select * from source_db limit 1";
sprintf(m_sqlStrSourceTable,"%s",szTemp);
hResult=m_pSourceTBRecordset->Open(m_sqlStrSourceTable,_variant_t((IDispatch*)m_pSourceTBConnection),VCLogADO::adOpenDynamic,VCLogADO::adLockUnspecified,VCLogADO::adConnectUnspecified);