题解 | #分组过滤练习题#
分组过滤练习题
http://www.nowcoder.com/practice/ddbcedcd9600403296038ee44a172f2d
select * from ( select if(avg(question_cnt) < 5 or avg(answer_cnt) < 20, university, null) as university, avg(question_cnt) as avg_question_cnt, avg(answer_cnt) as avg_answer_cnt from user_profile group by university ) t1 where university is not null
投递淘天集团等公司10个岗位 >
，这种没能力进去了也白搭，做好13级被输出的准备吧