Sql删除重复数据

标签：and   flag   set   max   删除重复数据   group by   删除   acitivity   PVID   

update a set DelFlag=1 from Mall_ShopAcitivityGoods a
inner join (
select SAG_GbpvID gbpvid,max(sag_id) id from Mall_ShopAcitivityGoods where SAG_ActivityID=‘20f2664e-4575-462a-93dd-f7b9eb5afade‘ and DelFlag=0 group by SAG_GbpvID
) b
on SAG_GbpvID=gbpvid and SAG_ID<>id where SAG_ActivityID=‘20f2664e-4575-462a-93dd-f7b9eb5afade‘ and DelFlag=0

Sql删除重复数据

标签：and   flag   set   max   删除重复数据   group by   删除   acitivity   PVID   

原文地址：https://www.cnblogs.com/lianjinzhe/p/11589513.html