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 ROUND(AVG(question_cnt),3) <5 OR ROUND(AVG(answer_cnt),3) <20;
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