[HackerRank SQL] Top Earners

문제 link
https://www.hackerrank.com/challenges/earnings-of-employees/problem

Code link
https://github.com/JamesJung01/Hackerrank_sql/blob/main/01_Easy/Top_Earners.sql

SELECT (SALARY*MONTHS), COUNT(SALARY*MONTHS)
FROM EMPLOYEE
GROUP BY (SALARY*MONTHS)
ORDER BY (SALARY*MONTHS) DESC
LIMIT 1;