51 lines
3.1 KiB
HTML
51 lines
3.1 KiB
HTML
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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE html
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PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html lang="en-us" xml:lang="en-us">
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<head>
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<meta name="DC.Type" content="concept" />
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<meta name="DC.Title" content="Decide between DB2 UDB CLI, dynamic SQL, and static SQL" />
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<meta name="DC.Relation" scheme="URI" content="rzadpbackground.htm" />
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<meta name="copyright" content="(C) Copyright IBM Corporation 1999, 2006" />
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<link rel="stylesheet" type="text/css" href="./ibmdita.css" />
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<link rel="stylesheet" type="text/css" href="./ic.css" />
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<title>Decide between DB2 UDB CLI, dynamic SQL, and static SQL</title>
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</head>
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<body id="rzadpinterfacetouse"><a name="rzadpinterfacetouse"><!-- --></a>
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<!-- Java sync-link --><script language="Javascript" src="../rzahg/synch.js" type="text/javascript"></script>
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<h1 class="topictitle1">Decide between DB2 UDB CLI, dynamic SQL, and static SQL</h1>
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<div><p>Which interfaces you choose depend on your application.</p>
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<p>DB2<sup>®</sup> UDB
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CLI is ideally suited for query-based applications requiring portability,
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and not requiring the APIs or utilities offered by a particular Database Management
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System (DBMS) (for example, catalog database, backup, restore). This does
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not mean that using DB2 UDB CLI calls DBMS specific APIs from an application.
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It means that the application is no longer as portable.</p>
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<p>Another important consideration is the performance comparison between dynamic
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and static SQL. Dynamic SQL is prepared at run time, while static
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SQL is prepared at the precompile stage. Because preparing statements requires
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additional processing time, static SQL might be more efficient. If you choose
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static over dynamic SQL, then DB2 UDB CLI is not an option.</p>
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<p>In most cases the choice between either interface is open to personal preference.
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Your previous experience might make one alternative seem more intuitive than
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the other.</p>
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</div>
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<div>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="rzadpbackground.htm" title="Learn about the basics of the DB2 UDB CLI, how it compares to embedded SQL, and how to select the best interface for your programming needs.">Get started with DB2 UDB CLI</a></div>
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</div>
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</div>
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</body>
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</html>
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