89 lines
4.7 KiB
HTML
89 lines
4.7 KiB
HTML
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<meta name="DC.Title" content="How the server updates changed object information with the SAVCHGOBJ command" />
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<title>How the server updates changed object information with the SAVCHGOBJ
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command</title>
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</head>
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<body id="rzaiu129"><a name="rzaiu129"><!-- --></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">How the server updates changed object information with the SAVCHGOBJ
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command</h1>
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<div><p>The changed object information kept by the server is a date and a timestamp.
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When the server creates an object, the server places a timestamp in the changed
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field. Any change to the object causes the server to update the date and timestamp.</p>
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<p>Use the DSPOBJD command and specify DETAIL(*FULL) to display
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the date and time of the last change for a specific object. Use the Display
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File Description (DSPFD) command to display the last change date for a database
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member.</p>
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<p>To display the last change date for a document library object, do the following: </p>
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<ol><li>Use the Display DLO Name (DSPDLONAM) command to display the system name
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for the DLO and the ASP where it is located.</li>
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<li>Use the DSPOBJD command, specifying the system name, the name of the document
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library for the ASP (such as QDOC0002 for ASP 2), and DETAIL(*FULL).</li>
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</ol>
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<p>Some common operations that result in a change of the date and time are: </p>
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<ul><li>Create commands</li>
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<li>Change commands</li>
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<li>Restore commands</li>
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<li>Add and remove commands</li>
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<li>Journal commands</li>
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<li>Authority commands</li>
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<li>Moving or duplicating an object</li>
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</ul>
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<p>These activities do not cause the server to update the change date and
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time: </p>
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<ul><li><em>Message queue</em>. When the server sends a message or when the server
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receives a message.</li>
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<li><em>Data queue</em>. When the server sends an entry or when the server receives
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and entry.</li>
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</ul>
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<p>When you IPL, the server changes all of the job queues and output queues.</p>
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<p><strong><em>Change Information for Database Files and Members:</em></strong> For database
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files, the SAVCHGOBJ command saves the file description and any members that
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changed.</p>
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<p>Some operations change the change date and time of the file and all of
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its members. Examples are the CHGOBJOWN, RNMOBJ, and MOVOBJ commands. If
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you save a file with 5 or more members, the server updates the change date
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for the library because it creates a recovery object in the library to improve
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save performance.</p>
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<p>Operations that affect only the content or attributes of a member change
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only the date and time of the members. Examples are: </p>
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<ul><li>Using the Clear Physical File Member (CLRPFM) command</li>
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<li>Updating a member by using source entry utility (SEU)</li>
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<li>Updating a member with a user program.</li>
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</ul>
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<p>The SAVCHGOBJ command can be useful for backing up typical source files.
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Normally, a source file has many members, and only a small percentage of
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members change every day.</p>
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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="rzaiurzaiu125.htm">Save only changed objects</a></div>
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</div>
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<div class="relconcepts"><strong>Related concepts</strong><br />
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<div><a href="rzaiurzaiu153.htm">Save changed objects in directories</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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