导入数据时, 存在的更新, 不存在的插入

以下代码由PHP站长网 52php.cn网络自互联网

此刻PHP站长网小编把它分享给各人，仅供参考

CREATE?trigger?tr_bank3?ON?bank3
AFTER?INSERT
AS
?
?
????Update?bank1?set?bank1.fmoney=bank1.fmoney+c.a?
??????From?
????????(select?fid,sum(case?when?TYPE=0?then?fmoney?when?type=1?then?-fmoney?end)?as?a?From?bank3?group?by?Fid)?C?
????where?
????????C.FID=bank1.FID?
????????AND?EXISTS(SELECT?1?FROM?INSERTED?WHERE?Fid=bank3.Fid))
?
????insert?into?bank1?
????select?
????????fid,????????sum(case?when?TYPE=0?then?fmoney???when?type=1?then?-fmoney?end)?as?a?
????from?
????????bank3?AS?a
????WHERE?
????????EXISTS(SELECT?1?FROM?INSERTED?WHERE?Fid=a.Fid)
????AND?
????????NOT?EXISTS(SELECT?1?FROM?bank1?WHERE?Fid=a.Fid)
????group?by?Fid

以上内容由PHP站长网【52php.cn】网络清算供各人参考研究

假如以上内容对您有辅佐，接待保藏、点赞、保举、分享。

（编辑：湖南网）

【声明】本站内容均来自网络，其相关言论仅代表作者个人观点，不代表本站立场。若无意侵犯到您的权利，请及时与联系站长删除相关内容!