题解 | #分组排序练习题#
分组排序练习题
https://www.nowcoder.com/practice/e00bbac732cb4b6bbc62a52b930cb15e
select university, avg(question_cnt) avg_question_cnt from user_profile group by university order by avg(question_cnt)
- 确定分组条件-大学
- 将avg(question_cnt)进行升序排列
- 确定所要查询的列
- 检查语法
注意：默认排序为升序
