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 user_profile where (university,gpa) in (select university,min(gpa) as gpa from user_profile group by university) order by university
看到一位大佬的in 醍醐灌顶
