<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html lang="en-us" xml:lang="en-us"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <meta name="security" content="public" /> <meta name="Robots" content="index,follow" /> <meta http-equiv="PICS-Label" content='(PICS-1.1 "http://www.icra.org/ratingsv02.html" l gen true r (cz 1 lz 1 nz 1 oz 1 vz 1) "http://www.rsac.org/ratingsv01.html" l gen true r (n 0 s 0 v 0 l 0) "http://www.classify.org/safesurf/" l gen true r (SS~~000 1))' /> <meta name="DC.Type" content="reference" /> <meta name="DC.Title" content="Example: Comparisons involving UDTs" /> <meta name="abstract" content="Suppose you want to know which products sold more in the U.S. than in Canada and Germany for the month of March, 2003 (3/03)." /> <meta name="description" content="Suppose you want to know which products sold more in the U.S. than in Canada and Germany for the month of March, 2003 (3/03)." /> <meta name="DC.subject" content="UDTs (User-defined types), comparisons involving UDTs example, examples, comparisons involving UDTs" /> <meta name="keywords" content="UDTs (User-defined types), comparisons involving UDTs example, examples, comparisons involving UDTs" /> <meta name="DC.Relation" scheme="URI" content="rbafyexampudt.htm" /> <meta name="copyright" content="(C) Copyright IBM Corporation 1998, 2006" /> <meta name="DC.Rights.Owner" content="(C) Copyright IBM Corporation 1998, 2006" /> <meta name="DC.Format" content="XHTML" /> <meta name="DC.Identifier" content="rbafyudtcomp" /> <meta name="DC.Language" content="en-us" /> <!-- All rights reserved. Licensed Materials Property of IBM --> <!-- US Government Users Restricted Rights --> <!-- Use, duplication or disclosure restricted by --> <!-- GSA ADP Schedule Contract with IBM Corp. --> <link rel="stylesheet" type="text/css" href="./ibmdita.css" /> <link rel="stylesheet" type="text/css" href="./ic.css" /> <title>Example: Comparisons involving UDTs</title> </head> <body id="rbafyudtcomp"><a name="rbafyudtcomp"><!-- --></a> <!-- Java sync-link --><script language="Javascript" src="../rzahg/synch.js" type="text/javascript"></script> <h1 class="topictitle1">Example: Comparisons involving UDTs</h1> <div><p>Suppose you want to know which products sold more in the U.S. than in Canada and Germany for the month of March, 2003 (3/03).</p> <div class="section"><p>Issue the following SELECT statement: </p> <pre> <strong>SELECT</strong> US.PRODUCT_ITEM, US.TOTAL <strong>FROM</strong> US_SALES <strong>AS</strong> US, CANADIAN_SALES <strong>AS</strong> CDN, GERMAN_SALES <strong>AS</strong> GERMAN <strong>WHERE</strong> US.PRODUCT_ITEM = CDN.PRODUCT_ITEM <strong>AND</strong> US.PRODUCT_ITEM = GERMAN.PRODUCT_ITEM <strong>AND</strong> US.TOTAL > US_DOLLAR (CDN.TOTAL) <strong>AND</strong> US.TOTAL > US_DOLLAR (GERMAN.TOTAL) <strong>AND</strong> US.MONTH = 3 <strong>AND</strong> US.YEAR = 2003 <strong>AND</strong> CDN.MONTH = 3 <strong>AND</strong> CDN.YEAR = 2003 <strong>AND</strong> GERMAN.MONTH = 3 <strong>AND</strong> GERMAN.YEAR = 2003</pre> </div> <div class="section"><p>Because you cannot directly compare U.S. dollars with Canadian dollars or Euros, you use the UDF to cast the amount in Canadian dollars to U.S. dollars, and the UDF to cast the amount in Euros to U.S. dollars. You cannot cast them all to DECIMAL and compare the converted DECIMAL values because the amounts are not monetarily comparable as they are not in the same currency. </p> </div> </div> <div> <div class="familylinks"> <div class="parentlink"><strong>Parent topic:</strong> <a href="rbafyexampudt.htm" title="These are examples of using UDTs.">Examples: Use UDTs</a></div> </div> </div> </body> </html>