group by 和 over(partition by)的区别

insert all into Employee values(1,'张三','5000','开发部') into Employee values(2,'李四','2000','销售部') into Employee values(3,'王麻子','2500','销售部') into Employe
posted @ 2021-08-10 10:30  *人丑就该多读书*  阅读(271)  评论(0)  编辑  收藏  举报