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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=us-ascii" /> <meta http-equiv="Content-Style-Type" content="text/css" /> <meta http-equiv="Content-Script-Type" content="text/javascript" /> <title>Configuring Oracle Databases to Work with Non-Oracle Databases</title> <meta name="generator" content="Oracle DARB XHTML Converter (Mode = ohj/ohw) - Version 5.1.1 Build 005" /> <meta name="date" content="2009-06-04T17:1:1Z" /> <meta name="robots" content="noarchive" /> <meta name="doctitle" content="Configuring Oracle Databases to Work with Non-Oracle Databases" /> <meta name="relnum" content="11g Release 2 (11.2)" /> <meta name="partnum" content="E10703-01" /> <link rel="copyright" href="./dcommon/html/cpyr.htm" title="Copyright" type="text/html" /> <link rel="stylesheet" href="./dcommon/css/blafdoc.css" title="Oracle BLAFDoc" type="text/css" /> <link rel="contents" href="toc.htm" title="Contents" type="text/html" /> <link rel="prev" href="tdpii_distdbs010.htm" title="Previous" type="text/html" /> <link rel="next" href="tdpii_distdbs012.htm" title="Next" type="text/html" /> <script src="./callback.js" type="text/javascript"></script> <noscript>Your browser does not support JavaScript. This help page requires JavaScript to render correctly.</noscript> </head> <body> <div class="zz-skip-header"><a href="#BEGIN">Skip Headers</a></div> <table class="simple oac_no_warn" summary="" cellspacing="0" cellpadding="0" width="100%"> <col width="86%" /> <col width="*" /> <tr valign="bottom"> <td align="left"></td> <td align="center"><a href="tdpii_distdbs010.htm"><img src="./dcommon/gifs/leftnav.gif" alt="Previous" /><br /> <span class="icon">Previous</span></a> </td> <td align="center"><a href="tdpii_distdbs012.htm"><img src="./dcommon/gifs/rightnav.gif" alt="Next" /><br /> <span class="icon">Next</span></a></td> </tr> </table> <p><a id="CIHEIAHD" name="CIHEIAHD"></a><a id="TDPII182" name="TDPII182"></a></p> <div class="sect2"><!-- infolevel="all" infotype="General" --> <h1>Configuring Oracle Databases to Work with Non-Oracle Databases<a id="sthref72" name="sthref72"></a><a id="sthref73" name="sthref73"></a></h1> <a name="BEGIN" id="BEGIN"></a> <p>Before you can query data, modify data, or run a stored procedure in a non-Oracle database, you must complete several tasks.</p> <p class="orderedlisttitle">To begin to work with data in non-Oracle databases: </p> <ol> <li><a id="CIHBAGJH" name="CIHBAGJH"></a> <p>Install and configure Oracle Database Gateway software for each non-Oracle database. Oracle Database Gateway software can be installed on the computer system running an Oracle database, on the computer system running a non-Oracle database, or on a third computer system. For information about installing and configuring a specific Oracle Database Gateway, see the Oracle documentation for that specific gateway.</p> </li> <li><a id="CIHBFBBC" name="CIHBFBBC"></a> <p>Configure Oracle Net Services so that the Oracle database can communicate with the listener for Oracle Database Gateway that was configured in Step <a href="#CIHBAGJH">1</a>. See <a href="javascript:open('http://www.oracle.com/pls/db112/lookup?id=NETAG0133','newWindow').focus()"><span class="italic">Oracle Database Net Services Administrator's Guide</span></a> for instructions.</p> <p>After communication is established with Oracle Database Gateway, the Oracle database can communicate with the non-Oracle database. An Oracle database can use Heterogeneous Services to communicate with Oracle Database Gateway. See <a href="javascript:open('http://www.oracle.com/pls/db112/lookup?id=HETER','newWindow').focus()"><span class="italic">Oracle Database Heterogeneous Connectivity User's Guide</span></a> for information about configuration options for Heterogeneous Services.</p> </li> <li> <p>Create a database link to the non-Oracle database. The database link must be created with an explicit <code>CONNECT</code> <code>TO</code> clause. After you complete Step <a href="#CIHBAGJH">1</a> and <a href="#CIHBFBBC">2</a>, you can create the database link in the same way that you would to connect to an Oracle database. See <a href="tdpii_common_ii006.htm#BGBGIACD">"Tutorial: Creating a Database Link"</a> for instructions.</p> </li> </ol> <p>After completing these steps, you can access data and procedures in the non-Oracle database transparently. To work with the non-Oracle database, follow the instructions in these topics and specify database objects in the non-Oracle database:</p> <ul> <li> <p><a href="tdpii_distdbs007.htm#BABFJGFG">"Tutorial: Querying Multiple Oracle Databases"</a></p> </li> <li> <p><a href="tdpii_distdbs008.htm#BABCCCGB">"Tutorial: Modifying Data in Multiple Oracle Databases"</a></p> </li> <li> <p><a href="tdpii_distdbs009.htm#BABFCFJJ">"Tutorial: Running a Stored Procedure in a Remote Oracle Database"</a></p> </li> </ul> <div class="helpinfonotealso"> <h2>Related Topics</h2> <p><a href="tdpii_intro2ii003.htm#CFHHAIGB">When to Access and Modify Information in Multiple Databases</a></p> <p><a href="tdpii_distdbs004.htm#BABEBFGD">About Accessing and Modifying Information in Non-Oracle Databases</a></p> <p><a href="tdpii_distdbs012.htm#CIHIFAJC">Best Practices for Working with Non-Oracle Databases</a></p> </div> </div> <!-- class="sect2" --> <!-- Start Footer --> <div class="footer"> <table class="simple oac_no_warn" summary="" cellspacing="0" cellpadding="0" width="100%"> <col width="86%" /> <col width="*" /> <tr> <td align="left"><span class="copyrightlogo">Copyright © 2007, 2009, Oracle and/or its affiliates. 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