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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