题解 | 分组过滤练习题
分组过滤练习题
https://www.nowcoder.com/practice/ddbcedcd9600403296038ee44a172f2d
select university,AVG(question_cnt) as avg_question_cnt,AVG(answer_cnt) as avg_answer_cnt from user_profile group by university having (AVG(question_cnt) < 5 or AVG(answer_cnt) < 20)