题解 | 统计商家不同会员每日访问人次及访问人数
SELECT
vip,
count(user_id) visit_nums,
count(DISTINCT user_id) visit_users
FROM visit_tb
JOIN uservip_tb USING(user_id)
GROUP BY vip
ORDER BY visit_nums DESC
SELECT
vip,
count(user_id) visit_nums,
count(DISTINCT user_id) visit_users
FROM visit_tb
JOIN uservip_tb USING(user_id)
GROUP BY vip
ORDER BY visit_nums DESC
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