题解 | #分组过滤练习题#
分组过滤练习题
http://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
投递亚信科技（中国）有限公司等公司6个岗位