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 *,row_number() over(partition by university order by gpa)as rk from user_profile )t where rk=1 order by university