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*,rank() over (partition by university order by gpa asc) rk from user_profile) t where t.rk = 1;
利用窗口函数排序