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 distinct t1.device_id, t1.university, t1.gpa from user_profile t1 where (t1.university,t1.gpa) in (select university,min(gpa) from user_profile group by university ) order by t1.university