消除sql2000里的重复数据
- 作者: 往事卜必眷恋
- 来源: 51数据库
- 2022-08-17
declare @id1 int,@oldid int,@e_REcordid int ,@Olde_REcordid int DECLARE price CURSOR FOR SELECT id ,E_recordId FROM evaeve order by E_recordId desc OPEN price FETCH NEXT FROM price into @oldid,@Olde_REcordid while @@fetch_status = 0 begin FETCH NEXT FROM price into @id1,@e_REcordid if @Olde_REcordid=@e_REcordid BEGIN delete from evaeve where id=@id1 end set @oldid=@id1 set @Olde_REcordid=@e_REcordid end close price DEALLOCATE price delete from evaeve where id not in( select max(id) from evaeve group by E_RecordID)
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