52 lines
3.4 KiB
HTML
52 lines
3.4 KiB
HTML
|
<?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="Examples: UDF code" />
|
||
|
|
<meta name="abstract" content="These examples show how to implement UDF code by using SQL functions and external functions." />
|
||
|
|
<meta name="description" content="These examples show how to implement UDF code by using SQL functions and external functions." />
|
||
|
|
<meta name="DC.Relation" scheme="URI" content="rbafyudf.htm" />
|
||
|
|
<meta name="DC.Relation" scheme="URI" content="rbafyudfexsqrnum.htm" />
|
||
|
|
<meta name="DC.Relation" scheme="URI" content="rbafyexamudfcounter.htm" />
|
||
|
|
<meta name="DC.Relation" scheme="URI" content="rbafyudfweather.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="rbafyuwexam" />
|
||
|
|
<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>Examples: UDF code</title>
|
||
|
|
</head>
|
||
|
|
<body id="rbafyuwexam"><a name="rbafyuwexam"><!-- --></a>
|
||
|
|
<!-- Java sync-link --><script language="Javascript" src="../rzahg/synch.js" type="text/javascript"></script>
|
||
|
|
<h1 class="topictitle1">Examples: UDF code</h1>
|
||
|
|
<div><p>These examples show how to implement UDF code by using SQL functions
|
||
|
|
and external functions.</p>
|
||
|
|
</div>
|
||
|
|
<div>
|
||
|
|
<ul class="ullinks">
|
||
|
|
<li class="ulchildlink"><strong><a href="rbafyudfexsqrnum.htm">Example: Square of a number UDF</a></strong><br />
|
||
|
|
In this example, suppose that you want a function that returns the square of a number.</li>
|
||
|
|
<li class="ulchildlink"><strong><a href="rbafyexamudfcounter.htm">Example: Counter</a></strong><br />
|
||
|
|
Suppose you want to number the rows in your SELECT statement. So you write a UDF which increments and returns a counter.</li>
|
||
|
|
<li class="ulchildlink"><strong><a href="rbafyudfweather.htm">Example: Weather table function</a></strong><br />
|
||
|
|
This is an example table function that returns weather information for various cities in the United States.</li>
|
||
|
|
</ul>
|
||
|
|
|
||
|
|
<div class="familylinks">
|
||
|
|
<div class="parentlink"><strong>Parent topic:</strong> <a href="rbafyudf.htm" title="In writing SQL applications, you can implement some actions or operations as a UDF or as a subroutine in your application: Although it may appear easier to implement new operations as subroutines in your application, you might want to consider the advantages of using a UDF instead.">Use user-defined functions (UDFs)</a></div>
|
||
|
|
</div>
|
||
|
|
</div>
|
||
|
|
</body>
|
||
|
|
</html>
|