显示薪水低于其经理但超过使用ORACLE SQL查询的任何其他经理的薪水的员工

Question

显示薪水低于其经理但超过使用ORACLE SQL查询的任何其他经理的薪水的员工

Answer 1

WITH mgr_salaries ( empno, ename, esal, mgr, mgr_salary ) AS (
  SELECT empno,
         ename,
         salary,
         mgr,
         PRIOR salary
  FROM   Employees
  START WITH mgr IS NULL
  CONNECT BY PRIOR empno = mgr
)
SELECT *
FROM   mgr_salaries
WHERE  salary < mgr_salary
AND    NOT EXISTS (
         SELECT 1
         FROM   mgr_salaries x
         WHERE  x.mgr <> m.mgr
         AND    x.mgr_salary > m.salary
       );