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(*), AVG(active_days_within_30), AVG(question_cnt) FROM user_profile GROUP BY university, gender
分组计算练习题
https://www.nowcoder.com/practice/009d8067d2df47fea429afe2e7b9de45
SELECT gender, university, COUNT(*), AVG(active_days_within_30), AVG(question_cnt) FROM user_profile GROUP BY university, gender
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