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有人收到面试通知了吗
select a.log_date, count(distinct a.user_id) as log_cnt, count(distinct b.user_id) as stay_cnt from t_login as a left join t_login as b on a.user_id = b.user_id and b.log_date between date(a.log_date, '+1 day&(10065)#39;) and date(a.log_date, '+3 day&(10066)#39;) group by a.log_date
第二道有人做出来了吗?sqlite不支持lag咋整
select log_mon,user_id,count(distinct log_date) as log_cnt from t_login group by user_id,log_mon having count(distinct log_date)>3 我记得好像是这样...
很好奇怎么用两次group
蹲一下
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