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

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