9 Find any Clerk who is not in department 10.
SELECT * FROM EMP2014170165 E
WHERE JOB = ‘CLERK‘ AND DEPTNO <> 10
ORDER BY EMPNO
13 Find all the employees whose last names end with S
SELECT * FROM EMP2014170165 E
WHERE TRIM(ENAME) LIKE ‘%S‘
ORDER BY EMPNO
15 List only those employees who receive commission.
SELECT * FROM EMP2014170165 E
WHERE COMM IS NOT NULL
ORDER BY EMPNO
21 Find all the salesmen in department 30 who have a salary greater than or equal to £18000.
SELECT * FROM EMP2014170165 E
WHERE JOB = ‘SALESMAN‘ AND DEPTNO = 30 AND SAL >= 18000
ORDER BY EMPNO
5 For each employee whose salary exceeds his manager‘s salary, list the employee‘s name and salary and the manager‘s name and salary.
SELECT E1.ENAME,E1.SAL,E2.ENAME,E2.SAL
FROM EMP2014170165 E1,EMP2014170165 E2
WHERE E1.MGR = E2.EMPNO AND E1.SAL>E2.SAL
6 List the employees who have BLAKE as their manager.
SELECT E1.*
FROM EMP2014170165 E1,EMP2014170165 E2
WHERE E1.MGR = E2.EMPNO AND E2.ENAME = ‘BLAKE‘
ORDER BY E1.EMPNO
原文：http://www.cnblogs.com/qlky/p/5286787.html