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 t.device_id, t.university, t.gpa from( select device_id, university, gpa, dense_rank()over(partition by university order by gpa asc) as m from user_profile ) as t where t.m=1
