题解 | #分组过滤练习题#
分组过滤练习题
https://www.nowcoder.com/practice/ddbcedcd9600403296038ee44a172f2d
select university,format(avg(question_cnt),3) avg_question_cnt,format(avg(answer_cnt),3) avg_answer_cnt from user_profile group by university having avg_question_cnt<5 or avg_answer_cnt<20;
