题解 | #找出每个学校GPA最低的同学#
找出每个学校GPA最低的同学
https://www.nowcoder.com/practice/90778f5ab7d64d35a40dc1095ff79065
select device_id,
university,
gpa
from ( select
device_id,
university,
gpa,
rank() over(partition by university
order by gpa) as ranking
from user_profile) as newtable
where newtable.ranking = 1
分组找最低值，窗口函数
注意from中的子查询必须命名
