题解 | #分组过滤练习题#
分组过滤练习题
https://www.nowcoder.com/practice/ddbcedcd9600403296038ee44a172f2d
SELECT university, ROUND(AVG (question_cnt),3) AS avg_question_cnt, ROUND( AVG (answer_cnt),3) AS avg_answer_cnt FROM user_profile GROUP BY university HAVING AVG(question_cnt) < 5 OR AVG(answer_cnt) < 20
