题解 | #作答试卷得分大于过80的人的用户等级分布#
作答试卷得分大于过80的人的用户等级分布
https://www.nowcoder.com/practice/5bc77e3a3c374ad6a92798f0ead4c744
elect `level`, count(uid) as level_cnt from (select ui.uid, ui.level from user_info as ui join exam_record as er on ui.uid = er.uid where er.exam_id = 9001 and er.score > 80) as a group by `level` order by level_cnt desc;
