题解 | 分组计算练习题
分组计算练习题
https://www.nowcoder.com/practice/009d8067d2df47fea429afe2e7b9de45
select
up.gender,
up.university,
count(1) as user_num,
AVG(up.active_days_within_30) as avg_active_day,
AVG(up.question_cnt) as avg_question_cnt
from
user_profile up
group by
up.gender,
up.university
order by up.gender
