1：判断正常表 select count(*) from SysObjects where XType=\'U\' and name =\'table\'
2：判断临时表 if exists(select * from tempdb..sysobjects where id=object_id(\'tempdb..#temp1\'))
2：判断临时表 if exists(select * from tempdb..sysobjects where id=object_id(\'tempdb..#temp1\'))