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(v.info_id) as visit_nums,
count(distinct u.user_id) as 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;