oracle 实现 存在记录就更新,不存在就插入 merge into
发布时间:2020-12-12 15:14:54 所属栏目:百科 来源:网络整理
导读:MERGE INTO emp t1USING ( select count(*) c from emp t2 where t2.empno='2000' )xON (x.c 0)when matched then update set t1.job='c++' where t1.empno='1000'when not matched then insert values('3000','zhangs','c',777,sysdate,9000,2,10);
MERGE INTO emp t1 USING ( select count(*) c from emp t2 where t2.empno='2000' )x ON (x.c > 0) when matched then update set t1.job='c++' where t1.empno='1000' when not matched then insert values('3000','zhangs','c',777,sysdate,9000,2,10); (编辑:李大同) 【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! |