SQL Update:使用一个表的数据更新另一张表

表结构

功能

用表B的数据(mc列)更新表A的mc列

SQL Server

update A SET A.mc = b.mc FROM A ,B WHERE  A.bmbh = B.bmbh and A.xmbh = B.xmbh;

Access

update A, B  set A.mc = B.mc where A.bmbh = B.bmbh and A.xmbh = B.xmbh;

update A INNER JOIN B ON A.bmbh = B.bmbh AND A.xmbh = B.xmbh SET A.mc = B.mc;
posted @ 2016-06-18 14:17  C#winform软件设计  阅读(447)  评论(0编辑  收藏  举报