choath的博客

之前写了一篇博客,写的如何去写触发器,下面是链接地址: https://blog.youkuaiyun.com/choath/article/details/86512491 下面就是当时写的触发器: 报错信息:Subquery returns more than 1 rows BEGIN declare phoneno varchar(20) character set utf8; decl...