97 lines
6.6 KiB
HTML
97 lines
6.6 KiB
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<meta name="abstract" content="DRDA support for distributed relational database processing is used by IBM relational database products. DRDA support defines protocols for communication between an application program and a remote relational database." />
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<meta name="DC.subject" content="Distributed Relational Database Architecture (DRDA) support, overview, DRDA (Distributed Relational Database Architecture) support, supported products, DB2, DB2 for VSE & VM, DB2 Connect, DB2 for VSE & VM, like environment, definition, environments, like, unlike environment, unlike" />
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<title>Distributed relational database architecture support</title>
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<body id="rbal1archsupp"><a name="rbal1archsupp"><!-- --></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">Distributed relational database architecture support</h1>
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<div><p>DRDA<sup>®</sup> support
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for distributed relational database processing is used by IBM<sup>®</sup> relational
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database products. DRDA support defines protocols for communication between
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an application program and a remote relational database.</p>
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<div class="section"><div class="p">Distributed
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Relational Database Architecture™ (DRDA) support provides distributed relational
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database management in both IBM and non-IBM environments. In IBM environments, relational data is managed
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with the following programs: <ul><li>DB2
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Universal Database™ for <span class="keyword">iSeries™</span></li>
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<li>DB2
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Universal Database for z/OS<sup>®</sup></li>
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<li>DB2
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Universal Database for VSE/VM</li>
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<li>DB2
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Universal Database for AIX<sup>®</sup></li>
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<li>DB2
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Universal Database for Linux<sup>®</sup></li>
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<li>DB2
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Universal Database for HP-UX</li>
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<li>DB2
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Universal Database for Sun Solaris</li>
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<li>DB2
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Universal Database for Windows<sup>®</sup></li>
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</ul>
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</div>
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</div>
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<div class="section"><p>DRDA support
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provides the structure for access to database information for relational database
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managers operating in <strong>like</strong> and <strong>unlike</strong> environments. For example,
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access to relational data between two or more DB2<sup>®</sup> UDB for <span class="keyword">iSeries</span> is
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distribution in a like environment. Access to relational data between DB2 UDB
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for <span class="keyword">iSeries</span> and another type
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of system or a client different from the one embedded in <span class="keyword">i5/OS™</span> is
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distribution in an unlike environment. One specific example of this is access
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to relational data between DB2 UDB for <span class="keyword">iSeries</span> and IBM DB2 Universal
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Driver for SQLJ and JDBC.</p>
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</div>
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<div class="section"><p>SQL is the standard IBM database language. It provides the
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necessary consistency to enable distributed data processing across like and
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unlike operating environments. Within DRDA support, SQL allows users to define,
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retrieve, and manipulate data across environments that support a DRDA implementation.</p>
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<p><img src="./delta.gif" alt="Start of change" />The Distributed Relational
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Database Architecture™ is an extension of the distributed data management
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(DDM) architecture. However, DRDA and DDM methods for accessing data are different. DRDA is
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an extension of SQL whereas DDM is an extension of native I/O. <img src="./deltaend.gif" alt="End of change" /></p>
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<p><img src="./delta.gif" alt="Start of change" />Using
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distributed relational database processing, an application can connect to
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a remote server using the relational database directory on the local system.
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The relational database directory provides the necessary links between a relational
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database name and the communications path to that database. An application
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running under the distributed relational database only has to identify the
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database name and run the SQL statements needed for processing.<img src="./deltaend.gif" alt="End of change" /></p>
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</div>
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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="rbal1intro.htm" title="Distributed relational database support on the iSeries server consists of an implementation of IBM Distributed Relational Database Architecture (DRDA) and integration of other SQL clients by use of Application Requester Driver (ARD) programs.">Introduction to distributed database programming</a></div>
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</div>
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<div class="relref"><strong>Related reference</strong><br />
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<div><a href="http://www.ibm.com/software/data/pubs/papers/sqlj/">IBM DB2 Universal Driver for SQLJ and JDBC 1.0</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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