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 user_profile.device_id,user_profile.university,user_profile.gpa
from(
select university,min(gpa) as gpa
from user_profile
group by university) as t1 inner join user_profile
#派生出来的表必须有别名
on t1.university = user_profile.university and user_profile.gpa = t1.gpa
order by t1.university asc
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