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7.0 KiB
HTML
116 lines
7.0 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.Title" content="iSeries Access for Windows ODBC" />
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<meta name="abstract" content="A common database interface that uses SQL as its database access language. iSeries Access for Windows provides an ODBC driver to support this interface." />
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<meta name="description" content="A common database interface that uses SQL as its database access language. iSeries Access for Windows provides an ODBC driver to support this interface." />
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<meta name="DC.Relation" scheme="URI" content="rzaikodbcapifunctions.htm" />
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<meta name="copyright" content="(C) Copyright IBM Corporation 1999, 2006" />
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<meta name="DC.Rights.Owner" content="(C) Copyright IBM Corporation 1999, 2006" />
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<!-- All rights reserved. Licensed Materials Property of IBM -->
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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>iSeries Access
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for Windows ODBC</title>
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</head>
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<body id="appodbc"><a name="appodbc"><!-- --></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">iSeries Access
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for Windows ODBC</h1>
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<div><p>A common database interface that uses SQL as its database access
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language. iSeries™ Access
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for Windows<sup>®</sup> provides
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an ODBC driver to support this interface.</p>
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<div class="section"><h4 class="sectiontitle">What is ODBC?</h4><p>ODBC stands for open database connectivity.
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It consists of:</p>
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<ul><li>A well-defined set of functions (application programming interfaces)</li>
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<li>Standards for SQL syntax (that are recommended but not imposed)</li>
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<li>Error codes</li>
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<li>Data types</li>
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</ul>
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</div>
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<div class="section"><p>The application programming interfaces provide a rich set of functions
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to connect to a database management system, run SQL statements and to retrieve
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data. Also included are functions to interrogate the SQL catalog of the database
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and the capabilities of the driver.</p>
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</div>
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<div class="section"><p>ODBC drivers return standard error codes and translate data types
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to a common (ODBC) standard. ODBC allows the application developer to obtain
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integrated database error information, and to avoid some of the most complex
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problems that are involved with making applications portable.</p>
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</div>
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<div class="section"><h4 class="sectiontitle">What you can do with ODBC:</h4><p>Use ODBC to:</p>
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<ul><li>Send SQL requests to the database management system (DBMS).</li>
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<li>Use the same program to access different database management system (DBMS)
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products without recompiling.</li>
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<li>Create an application that is independent of the data communications protocol.</li>
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<li>Handle data in a format convenient to the application.</li>
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</ul>
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</div>
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<div class="section"><p>The flexibility of ODBC APIs allows you to use them in transaction-based,
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line-of-business applications (where the <span class="keyword">SQL</span> is
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predefined) and also in query tools (where the select statement is created
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at run time).</p>
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</div>
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<div class="section"><h4 class="sectiontitle">Structured Query Language (SQL):</h4><p>ODBC supports dynamic <span class="keyword">SQL</span>, which sometimes is associated
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with poor performance. However, careful use of parameter markers enables repeated
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statements to achieve static <span class="keyword">SQL</span>-like
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performance. Also, extended dynamic <span class="keyword">SQL</span>–a
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special capability of the iSeries Access for Windows ODBC driver–enables previously
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prepared <span class="keyword">SQL</span> statements
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to achieve performance that rivals static <span class="keyword">SQL</span>. </p>
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<p>For
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more information on SQL, see the IBM<sup>®</sup> <em>SQL Reference</em> book. View an HTML
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online version of the book, or print a PDF version, from the <a href="../db2/rbafzmst02.htm">DB2 Universal Database™ for iSeries SQL
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Reference</a> iSeries Information
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Center topic.</p>
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</div>
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<div class="section"><h4 class="sectiontitle">iSeries Access
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for Windows ODBC
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topics:</h4><div class="note"><span class="notetitle">Note:</span> The information linked to from this page applies to the iSeries Access
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for Windows 32-bit
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ODBC driver, the iSeries Access
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for Windows 64-bit
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ODBC driver, and the iSeries Access for Linux<sup>®</sup> ODBC driver. For additional information
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regarding setup for the iSeries Access for Linux ODBC driver see <a href="http://www.ibm.com/servers/eserver/iseries/linux/odbc"> iSeries ODBC
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Driver for Linux.</a></div>
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<p>You
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can find documentation on the ODBC standard by searching for ODBC at the <a href="http://www.microsoft.com/" target="_blank">Microsoft<sup>®</sup> Web
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site</a>.<img src="www.gif" alt="Link outside the Information Center" /></p>
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</div>
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</div>
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<div>
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<ul class="ullinks">
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<li class="ulchildlink"><strong><a href="rzaikodbcapiinfo.htm">Files required to build an ODBC application</a></strong><br />
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Identify the files required to build an ODBC application.</li>
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<li class="ulchildlink"><strong><a href="rzaikodbcapifunctions.htm">Implementation issues of ODBC APIs</a></strong><br />
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Learn about implementations issues when using ODBC APIs.</li>
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<li class="ulchildlink"><strong><a href="rzaikodbcperfconsd.htm">iSeries Access for Windows ODBC performance</a></strong><br />
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See any of the following ODBC performance topics.</li>
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<li class="ulchildlink"><strong><a href="rzaikodbcprogexamples.htm">ODBC program examples</a></strong><br />
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The following ODBC programming examples demonstrate simple queries, and accessing and returning data by calling stored procedures. C/C++, Visual Basic and RPG programming language versions are provided.</li>
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</ul>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="rzaikcaapidb.htm" title="iSeries Access for Windows provides multiple programming interfaces for accessing database files on the iSeries server.">iSeries Access for Windows: Database programming</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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