select user_id,g.room_id,room_type, (day(checkout_time)-day(checkin_time)) days from guestroom_tb g join checkin_tb c on g.room_id = c.room_id where (day(checkout_time)-day(checkin_time))=1 and (hour(checkout_time)-hour(checkin_time))>0 or (day(checkout_time)-day(checkin_time))>1 and mid(check...