----------------------------------------------------------------------------- -- (c) Copyright IBM Corp. 2007 All rights reserved. -- -- The following sample of source code ("Sample") is owned by International -- Business Machines Corporation or one of its subsidiaries ("IBM") and is -- copyrighted and licensed, not sold. You may use, copy, modify, and -- distribute the Sample in any form without payment to IBM, for the purpose of -- assisting you in the development of your applications. -- -- The Sample code is provided to you on an "AS IS" basis, without warranty of -- any kind. IBM HEREBY EXPRESSLY DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR -- IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF -- MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. Some jurisdictions do -- not allow for the exclusion or limitation of implied warranties, so the above -- limitations or exclusions may not apply to you. IBM shall not be liable for -- any damages you suffer as a result of using, copying, modifying or -- distributing the Sample, even if IBM has been advised of the possibility of -- such damages. ----------------------------------------------------------------------------- -- -- SOURCE FILE NAME: cte.db2 -- -- SAMPLE: How to create a COMMON TABLE EXPRESSION -- -- SQL STATEMENT USED: -- SELECT -- -- ----------------------------------------------------------------------------- -- -- For more information about the command line processor (CLP) scripts, -- see the README file. -- -- For information on using SQL statements, see the SQL Reference. -- -- For the latest information on programming, building, and running DB2 -- applications, visit the DB2 Information Center: -- http://publib.boulder.ibm.com/infocenter/db2luw/v9r7/index.jsp ----------------------------------------------------------------------------- WITH PAYLEVEL AS (SELECT EMPNO, YEAR(HIREDATE) AS HIREYEAR, EDLEVEL, SALARY+BONUS+COMM AS TOTAL_PAY FROM EMPLOYEE WHERE EDLEVEL > 16 ), PAYBYED (EDUC_LEVEL, YEAR_OF_HIRE, AVG_TOTAL_PAY) AS (SELECT EDLEVEL, HIREYEAR, AVG(TOTAL_PAY) FROM PAYLEVEL GROUP BY EDLEVEL, HIREYEAR ) SELECT EMPNO, EDLEVEL, YEAR_OF_HIRE, TOTAL_PAY, AVG_TOTAL_PAY FROM PAYLEVEL, PAYBYED WHERE EDLEVEL=EDUC_LEVEL AND HIREYEAR = YEAR_OF_HIRE AND TOTAL_PAY < AVG_TOTAL_PAY;