摘要: delimiter $create function getname (id int)returns varchar(30)begindeclare name varchar(30);select sname into name from student where sid=id;return na 阅读全文
posted @ 2020-03-05 13:57 萌橙 阅读(811) 评论(0) 推荐(0) 编辑
摘要: 详解:知乎https://www.zhihu.com/question/20004877 阅读全文
posted @ 2020-03-05 09:51 萌橙 阅读(431) 评论(0) 推荐(0) 编辑