<?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: Common tool behaviors that degrade ODBC performance" /> <meta name="abstract" content="The following examples demonstrate performance problems that are associated with writing SQL and ODBC calls that do NOT take advantage of a unique feature of a particular ODBC driver or the server database management system." /> <meta name="description" content="The following examples demonstrate performance problems that are associated with writing SQL and ODBC calls that do NOT take advantage of a unique feature of a particular ODBC driver or the server database management system." /> <meta name="DC.Relation" scheme="URI" content="rzaikodbcendusertools.htm" /> <meta name="DC.Relation" scheme="URI" content="odbcquerytoola.htm" /> <meta name="DC.Relation" scheme="URI" content="odbcquerytoolb.htm" /> <meta name="DC.Relation" scheme="URI" content="odbcquerytoolc.htm" /> <meta name="copyright" content="(C) Copyright IBM Corporation 1999, 2006" /> <meta name="DC.Rights.Owner" content="(C) Copyright IBM Corporation 1999, 2006" /> <meta name="DC.Format" content="XHTML" /> <meta name="DC.Identifier" content="toolsbadperf" /> <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: Common tool behaviors that degrade ODBC performance</title> </head> <body id="toolsbadperf"><a name="toolsbadperf"><!-- --></a> <!-- Java sync-link --><script language="Javascript" src="../rzahg/synch.js" type="text/javascript"></script> <h1 class="topictitle1">Examples: Common tool behaviors that degrade ODBC performance</h1> <div><p>The following examples demonstrate performance problems that are associated with writing <span class="keyword">SQL</span> and ODBC calls that do NOT take advantage of a unique feature of a particular ODBC driver or the server database management system.</p> </div> <div> <ul class="ullinks"> <li class="ulchildlink"><strong><a href="odbcquerytoola.htm">Example: Query tool A</a></strong><br /> This example illustrates using ODBC bound columns to retrieve information faster.</li> <li class="ulchildlink"><strong><a href="odbcquerytoolb.htm">Example: Query tool B</a></strong><br /> This example illustrates using one allocation statement for the entire call.</li> <li class="ulchildlink"><strong><a href="odbcquerytoolc.htm">Example: Query tool C</a></strong><br /> In this example, the complex decision support-type queries ended up making the query run longer.</li> </ul> <div class="familylinks"> <div class="parentlink"><strong>Parent topic:</strong> <a href="rzaikodbcendusertools.htm" title="Having an ODBC driver that is optimally tuned is only part of the performance equation. The other part is the tools that are used; whether they are used simply to query the data, or to build complex programs.">Performance considerations of common end-user tools</a></div> </div> </div> </body> </html>