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<h1>22. Virtuoso Functions Guide - xmlsql_update</h1>
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<div id="text">
<h2>xmlsql_update</h2>
<div class="refpurpose">Performs insert/update/delete operations
based on an XML updategram.</div>
<div class="funcsynopsis">
<span class="funcdef">
<span class="function">xmlsql_update</span>
</span>
(<span class="paramdef">in <span class="parameter">xml_grams</span>XML_Entity </span>,
<span class="paramdefoptional">[in <span class="optional">input_parameters</span> vector]</span>,
<span class="paramdefoptional">[in <span class="optional">debug</span> integer]</span>);
</div>
<div class="refsect1">
<div class="refsect1title">Description</div>
<p>
<span class="computeroutput">xmlsql_update()</span> supports XML-based insert,
update, and delete operations performed on an existing table in the
database. See <a href="updategrams.html">Updategrams basics</a>
in the "Web and XML section" for a detailed explanation.</p>
</div>
<div class="refsect1">
<div class="refsect1title">Parameters</div>
<div class="refsect2">
<span class="refsect2title">xml_grams – </span>
Mandatory parameter containing the XML document with gram(s).
This can be produced with sequential calls to the
<span class="computeroutput">xml_tree()</span> and
<span class="computeroutput">xml_tree_doc()</span> functions.
</div>
<div class="refsect2">
<span class="refsect2title">input_parameters – </span>
Optional array or vector of parameter pairs (parameter_name, parameter_value).
</div>
<div class="refsect2">
<span class="refsect2title">debug – </span>
The debug parameter takes values 1/0 to enable(1) or disable(0) printing of the SQL
statements it generates from the updategrams on the server's standard output. If not specified the default is disabled (0).
</div>
</div>
<div class="refsect1">
<div class="refsect1title">Return Values</div>
<p>Zero, if no error is signalled.</p>
</div>
<div class="refsect1title">Errors</div>
<table class="data">
<tr>
<th class="data">Error Code</th>
<th class="data">Error Text</th>
</tr>
<tr>
<td class="data">
<a name="errXP370" />
<span class="errorcode">XP370</span>
</td>
<td class="data">
<span class="errorname">xmlsql_update needs an entity as argument</span>
</td>
</tr>
<tr>
<td class="data">
<a name="err42000" />
<span class="errorcode">42000</span>
</td>
<td class="data">
<span class="errorname">xmlsql_update expects a vector of even length as second argument</span>
</td>
</tr>
<tr>
<td class="data">
<a name="errSX999" />
<span class="errorcode">SX999</span>
</td>
<td class="data">
<span class="errorname">Empty parameters list</span>
</td>
</tr>
<tr>
<td class="data">
<a name="errSX998" />
<span class="errorcode">SX998</span>
</td>
<td class="data">
<span class="errorname">Too many values for query</span>
</td>
</tr>
<tr>
<td class="data">
<a name="errSX998" />
<span class="errorcode">SX998</span>
</td>
<td class="data">
<span class="errorname">No columns specified in updategram</span>
</td>
</tr>
</table>
<br />
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<p>
<a href="updategrams.html">Updategrams basics</a>
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