📢 본 포스팅에 활용되는 기본 문제 및 자료 출처는 해커랭크 Prepare / https://www.hackerrank.com/dashboard 임을 밝힙니다. ■ 문제 We define an employee's total earnings to be their monthly salary x months worked, and the maximum total earnings to be the maximum total earnings for any employee in the Employee table. Write a query to find the maximum total earnings for all employees as well as the total number of employees who have..