90 lines
5.9 KiB
HTML
90 lines
5.9 KiB
HTML
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<meta name="DC.Title" content="SQL relational database and system terminology" />
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<meta name="abstract" content="In the relational model of data, all data is perceived as existing in tables. DB2 UDB for iSeries objects are created and maintained as system objects." />
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<title>SQL relational database and system terminology</title>
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<body id="rbafyxdbterms"><a name="rbafyxdbterms"><!-- --></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">SQL relational database and system terminology</h1>
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<div><p>In the relational model of data, all data is perceived as existing
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in tables. <span class="keyword">DB2<sup>®</sup> UDB for iSeries™</span> objects
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are created and maintained as system objects.</p>
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<p>The following table shows the relationship between system terms and SQL
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relational database terms.</p>
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<table cellpadding="4" cellspacing="0" border="1" class="tableborder"><tr><td>
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<a name="rbafyxdbterms__dbterms"><!-- --></a><table cellpadding="4" cellspacing="0" summary="" id="rbafyxdbterms__dbterms" width="100%" border="0"><caption>Table 1. Relationship of System Terms to
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SQL Terms</caption><thead align="left"><tr><th align="left" valign="bottom" width="50%" id="d0e89">System Terms</th>
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<th align="left" valign="bottom" width="50%" id="d0e91">SQL Terms</th>
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</tr>
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</thead>
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<tbody><tr><td align="left" valign="top" width="50%" headers="d0e89 "><strong>Library</strong>. Groups related objects and
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allows you to find the objects by name.</td>
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<td align="left" valign="top" width="50%" headers="d0e91 "><strong>Schema</strong>. Consists of a library, a journal,
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a journal receiver, an SQL catalog, and optionally a data dictionary. A schema
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groups related objects and allows you to find the objects by name.</td>
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</tr>
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<tr><td align="left" valign="top" width="50%" headers="d0e89 "><strong>Physical file</strong>. A set of records.</td>
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<td align="left" valign="top" width="50%" headers="d0e91 "><strong>Table</strong>. A set of columns and rows.</td>
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</tr>
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<tr><td align="left" valign="top" width="50%" headers="d0e89 "><strong>Record</strong>. A set of fields.</td>
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<td align="left" valign="top" width="50%" headers="d0e91 "><strong>Row</strong>. The horizontal part of a table
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containing a serial set of columns.</td>
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</tr>
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<tr><td align="left" valign="top" width="50%" headers="d0e89 "><strong>Field</strong>. One or more characters of related
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information of one data type.</td>
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<td align="left" valign="top" width="50%" headers="d0e91 "><strong>Column</strong>. The vertical part of a table
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of one data type.</td>
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</tr>
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<tr><td align="left" valign="top" width="50%" headers="d0e89 "><strong>Logical file</strong>. A subset of fields and
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records of one or more physical files.</td>
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<td align="left" valign="top" width="50%" headers="d0e91 "><strong>View</strong>. A subset of columns and rows
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of one or more tables.</td>
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</tr>
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<tr><td align="left" valign="top" width="50%" headers="d0e89 "><strong>SQL Package</strong>. An object type that is
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used to run SQL statements.</td>
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<td align="left" valign="top" width="50%" headers="d0e91 "><strong>Package</strong>. An object type that is used
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to run SQL statements.</td>
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</tr>
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<tr><td align="left" valign="top" width="50%" headers="d0e89 "><strong>User Profile</strong></td>
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<td align="left" valign="top" width="50%" headers="d0e91 "><strong>Authorization name or Authorization ID.</strong></td>
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</tr>
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</tbody>
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</table>
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</td></tr></table>
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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="rbafysqlconcepts.htm" title="DB2 UDB for iSeries SQL consists of these main parts.">SQL concepts</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="../ddp/rbal1kickoff.htm">Distributed database programming</a></div>
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</div>
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</div>
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</body>
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