如何显示不是经理的员工的姓名？

Question

我需要检索所有不是经理人的员工

我尝试使用此代码＆gt;

SELECT  MGR.LAST_NAME ,
    E.EMPLOYEE_ID
FROM    EMPLOYEES E , (SELECT  M.LAST_NAME ,
                           M.EMPLOYEE_ID 
                   FROM    EMPLOYEES E , EMPLOYEES M
                   WHERE   E.MANAGER_ID = M.EMPLOYEE_ID) MGR
WHERE   E.EMPLOYEE_ID = MGR.EMPLOYEE_ID

Answer 1

SELECT 
 E.LAST_NAME,
 E.EMPLOYEE_ID 
FROM EMPLOYEES E
 WHERE EMPLOYEE_ID not in 
       (SELECT MANAGER_ID FROM EMPLOYEES where MANAGER_ID is not null)