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,
min(gpa) over(partition by university) as gpa1
from user_profile) as u1
where u1.gpa=u1.gpa1
内层的select查询，输出是这样的结果
相当于从内层查询的表中做查询
