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_name,c.name as c_n,l.date from login l,user u,client c where l.user_id = u.id and l.client_id=c.id and (l.user_id,l.date) in (select user_id,max(date) from login group by user_id) order by u.name asc
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