题解 | 分组过滤练习题
分组过滤练习题
https://www.nowcoder.com/practice/ddbcedcd9600403296038ee44a172f2d
select t1.university, avg_question_cnt, avg_answer_cnt from (select university,round(avg(question_cnt), 3) avg_question_cnt, round(avg(answer_cnt), 3) avg_answer_cnt from user_profile group by university ) t1 where avg_question_cnt < 5 or avg_answer_cnt <20
使用临时表。
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