Python学习与数据挖掘
关注"Python学习与数据挖掘"，
设为“置顶或星标”，第一时间送达干货
select a.deptno，avg(a.salary)from(select *, rank() over( partition by deptno order by salary ) as rank_1, rank() over( partition by deptno order by salary desc) as rank_2from emp) agroup by a.deptnowhere a.rank_1 >1 and a.rank_2 >1
(长按三秒，即可进入)
后台已放置一份精心整理的技术干货，查看即可获取！ 后台回复关键字：面试，带你进入高手如云的学习交流群！ 推荐阅读
