SQL: Leet code 문제풀이(570, 1934, 620)
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DATA/SQL
570. Managers with at least 5 direct reports https://leetcode.com/problems/managers-with-at-least-5-direct-reports/description/ #구할 값: name # 조건절에서 managerId가 5번 이상 언급되는 값을 찾아서 집계해준다.select namefrom Employeewhere id in (select managerId from Employee group by managerId having count(*) >= 5) 1934. Confirmation Ratehttps://leetcode.com/problems/confirmation-rate/description/ 각 사용자의 확..