85 lines
6.4 KiB
HTML
85 lines
6.4 KiB
HTML
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<meta name="abstract" content="The i5/OS licensed program uses the relational database directory to define the relational database names that can be accessed by applications running on an iSeries server, to specify if the connection uses Systems Network Architecture (SNA) or IP, and to associate these relational database names with their corresponding network parameters." />
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<title>Use the relational database directory</title>
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<body id="rbal1rdbdir"><a name="rbal1rdbdir"><!-- --></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">Use the relational database directory</h1>
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<div><p>The <span class="keyword">i5/OS™</span> licensed
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program uses the relational database directory to define the relational database
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names that can be accessed by applications running on an <span class="keyword">iSeries™ server</span>,
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to specify if the connection uses Systems Network Architecture (SNA) or IP,
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and to associate these relational database names with their corresponding
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network parameters.</p>
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<p>The relational database directory allows an application requester (AR)
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to accept a relational database name from the application and translate this
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name into the appropriate Internet Protocol (IP) address or host name and
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port, or the appropriate Systems Network Architecture network identifier and
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logical unit (LU) name values for communications processing. As of V5R2, the
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RDB directory is also used to specify the user's preferred outbound connection
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security mechanism. The relational database directory also allows associating
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an ARD program with a relational database name.</p>
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<p>Each iSeries system
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in the distributed relational database network must have a relational database
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directory configured. There is only one relational database directory on a
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system. Each AR in the distributed relational database network must have an
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entry in its relational database directory for its local relational database
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and one for each remote and local user relational database the AR accesses.
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Any system in the distributed relational database network that acts only as
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an application server (AS) does not need to include the relational database
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names of other remote relational databases in its directory.</p>
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<p>The relational database name assigned to the local relational database
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must be unique. That is, it should be different from any other relational
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database in the network. Names assigned to other relational databases in the
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directory identify remote relational databases, or local user databases. The
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names of remote RDBs must match the name an AS uses to identify its local
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system database or one of its user databases, if configured. If the local
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system RDB name entry at an AS does not exist when it is needed, one will
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be created automatically in the directory. The name used will be the current
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system name displayed by the <span class="cmdname">Display Network Attributes (DSPNETA)</span> command.</p>
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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="rbal1workwith.htm">Work with the relational database directory</a></strong><br />
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Use these instructions to work with the relational database directory.</li>
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<li class="ulchildlink"><strong><a href="rbal1rddsetupexample.htm">Example: Set up a relational database directory</a></strong><br />
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The Spiffy Corporation network provides an example to illustrate how the relational database directory is used on servers in a distributed relational database network and show how each is set up. The example assumes the use of Advanced Program-to-Program Communication (APPC) for communications, as opposed to TCP/IP, which would be simpler to set up.</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="rbal1setup.htm" title="The runtime support for an iSeries distributed relational database is provided by the operating system. Therefore, when the operating system is installed, distributed relational database support is installed.">Initial setup</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="../cl/dspneta.htm">Display Network Attributes (DSPNETA) command</a></div>
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</div>
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</div>
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</body>
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