MySQL 해커랭크 | New Companies ( 테이블 조인, LENGTH, SUBSTRING_INDEX, CAST ) 문제https://www.hackerrank.com/challenges/the-company/problem?isFullScreen=true New Companies | HackerRankFind total number of employees.www.hackerrank.com[corporation hierarchy]Founder → Lead_Manager → Senior_Manager → Manager → Employeeprint the company_code, founder name, total number of lead managers, total number of senior managers, total number of managers, total number of employeesorder out.. 이전 1 다음
