题解 | #分组计算练习题#
分组计算练习题
http://www.nowcoder.com/practice/009d8067d2df47fea429afe2e7b9de45
SELECT gender,university,COUNT(*) 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 gender,university;
投递字节跳动等公司9个岗位
