[SQL문제풀기] 레스토랑의 요일별 VIP

문제

solvesql.com

https://solvesql.com/problems/restaurant-vip/

SQLite

내가 작성한 정답

select *
from tips
where (day,total_bill) in (select day, max(total_bill) 
                          from tips
                          group by day);