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,rank() over(partition by university order by gpa) as ranking from user_profile ) as a where a.ranking =1
通过窗口函数排序之后找出位列第一的即可,不考虑多个人相同的gpa可以用row_number函数。