题解 | 统计商家不同会员每日访问人次及访问人数
select u.vip,count(*) visit_nums,count(distinct u.user_id) visit_users from visit_tb v left join uservip_tb u on v.user_id=u.user_id group by u.vip order by visit_nums desc;
?:group by和count(*)
select u.vip,count(*) visit_nums,count(distinct u.user_id) visit_users from visit_tb v left join uservip_tb u on v.user_id=u.user_id group by u.vip order by visit_nums desc;
?:group by和count(*)
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