where expdate='2099-01-25%'可能是这条件有误···set memo=memo+'增加一年'这里我的数据修改后是对的我用的数据库是sql 2005
update member set memo=memo+'增加一年' where expdate like '2099-01-25%'或者update member set memo=memo+'增加一年' where expdate='2099-01-25'