题解 | 分组计算练习题
分组计算练习题
https://www.nowcoder.com/practice/009d8067d2df47fea429afe2e7b9de45
select gender,university ,count(gender) user_num ,round(avg(active_days_within_30),1) avg_active_day ,round(avg(question_cnt),1) avg_question_cnt from user_profile group by university,gender order by gender,university
查看7道真题和解析