_RecordsetPtr 获得记录总数的问题
_RecordsetPtr pRecordset;
pRecordset.CreateInstance(__uuidof(Recordset));
pRecordset->Open("select * from images",m_pConnection.GetInterfacePtr(),adOpenDynamic,adLockOptimistic,adCmdText);//adOpenStatic
long cou = pRecordset->GetRecordCount();
获得的记录数总是0xffffffff