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 user.name u_n,client.name c_n,login.date
from(
select user_id,max(date) date
from login
group by user_id
)t1 left join login on t1.date = login.date and t1.user_id = login.user_id
join user on user.id = t1.user_id
join client on client.id = login.client_id
order by user.name
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