DataModule2.daoyiQuery_daoyi.disablecontrols
DataModule2.daoyiQuery_daoyi.Close;
DataModule2.daoyiQuery_daoyi.SQL.Clear;
DataModule2.daoyiQuery_daoyi.SQL.add('select * from table2');
DataModule2.daoyiQuery_daoyi.open
DataModule2.daoyiQuery_daoyi.enablecontrols
DataModule2.daoyiQuery_daoyi.Close;
DataModule2.daoyiQuery_daoyi.SQL.Clear;
DataModule2.daoyiQuery_daoyi.SQL.add('select * from table2');
DataModule2.daoyiQuery_daoyi.open
DataModule2.daoyiQuery_daoyi.enablecontrols
rep_daoyi.rep_daoyi.Preview;