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) rk FROM user_profile) a WHERE a.rk=1;
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