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 rnk from user_profile) a where rnk = 1 order by university