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<h1>22. Virtuoso Functions Guide - VAD_INSTALL</h1>
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<h2>VAD_INSTALL</h2>
<div class="refpurpose">Invoke VAD installation process</div>
<div class="funcsynopsis">
<span class="funcdef">varchar DB.DBA.<span class="function">VAD_INSTALL</span>
</span>
(<span class="paramdef">in <span class="parameter">package_uri </span>varchar</span>,
<span class="paramdef">in <span class="parameter">source_type </span>integer</span>);
</div>
<div class="refsect1">
<div class="refsect1title">Description</div>
<p>Invoke the install operation from interactive SQL or from the web user
interface. This will:</p>
<ul>
<li>enter into atomic mode</li>
<li>Check for version and prerequisite package compatibility</li>
<li>Run the pre-install SQL script</li>
<li>Load all SQL code and other resources in the order given by the developer</li>
<li>Run any post install SQL code</li>
<li>If DB.DBA.VAD_INSTALL() succeeded the server comes back on-line.</li>
</ul>
<p>If there was a failure in mid-install, such as running out of disk or
some other serious unrecoverable database error, the server exits. The
installation can be undone manually by halting the server, deleting the
transaction log file and restarting. The server will start from the checkpoint
as if the installation was never attempted.</p>
</div>
<div class="refsect1">
<div class="refsect1title">Parameters</div>
<div class="refsect2">
<span class="refsect2title">package_uri – </span>
URI of VAD file</div>
<div class="refsect2">
<span class="refsect2title">source_type – </span>
The second parameter to VAD_INSTALL controls whether the given path to the
package is taken as a filesystem path or a DAV path.
Value of 1 means the path is interpreted as a DAV path. The default value is 0
which means the VAD package is read from filesystem path.
</div>
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<div class="refsect1">
<div class="refsect1title">See Also</div>
<p>
<a href="fn_vad_check_uninstallability.html">vad_check_uninstallability()</a>
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<a href="fn_vad_check_installability.html">vad_check_installability()</a>
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<a href="fn_vad_fail_check.html">vad_fail_check()</a>
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<a href="fn_vad_pack.html">vad_pack()</a>
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<a href="fn_vad_safe_exec.html">vad_safe_exec()</a>
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<a href="fn_vad_uninstall.html">vad_uninstall()</a>
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<a href="fn_vad_load_file.html">vad_load_file()</a>
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<a href="fn_vad_check.html">vad_check()</a>
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