题解 | 牛客每个人最近的登录日期(二)
牛客每个人最近的登录日期(二)
https://www.nowcoder.com/practice/7cc3c814329546e89e71bb45c805c9ad
select u.name as u_n, c.name as c_n, t.date
from login l
join user u on l.user_id=u.id
join client c on l.client_id=c.id
join (
select user_id,max(date) as date
from login
group by user_id
) as t on l.user_id=t.user_id and l.date=t.date
order by u_n
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