mySQL

[HackerRank] Top Earners

bellhundred 2023. 2. 27. 00:56

https://www.hackerrank.com/challenges/earnings-of-employees/problem?isFullScreen=true&h_r=next-challenge&h_v=zen 

 

Top Earners | HackerRank

Find the maximum amount of money earned by any employee, as well as the number of top earners (people who have earned this amount).

www.hackerrank.com

SELECT salary*months, count(*) 
from employee
group by salary*months
order by salary*months desc
limit 1

지금껏 받은 월급의 총합(=소득) 중 제일 많이 받은 사람의 금액, 그리고 그 금액만큼을 받은 사람의 수를 표시하는 문제다.

 

group by salary*months를 빼먹어서 조금 애먹었던 문제였다.