题解 | 查询连续入住多晚的客户信息？
查询连续入住多晚的客户信息？
https://www.nowcoder.com/practice/5b4018c47dfd401d87a5afb5ebf35dfd
select
t2.user_id,
t2.room_id,
t1.room_type,
DATEDIFF (left (checkout_time, 10), left (checkin_time, 10)) as days
from
guestroom_tb t1
join checkin_tb t2 on t1.room_id = t2.room_id
where
left (t2.checkin_time, 10) >= '2022-06-12'
having
days > 1
order by
days asc,
t2.room_id asc,
t2.user_id desc;
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