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<h1>22. Virtuoso Functions Guide - sinv_create_key_mapping</h1>
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<div id="text">
<h2>sinv_create_key_mapping</h2>
<div class="refpurpose">Creates a key mapping function & table.</div>
<div class="funcsynopsis">
<span class="funcdef">
<span class="function">sinv_create_key_mapping</span>
</span>
(<span class="paramdef">in <span class="parameter">map_name</span> varchar</span>,
<span class="paramdef">in <span class="parameter">part_defs</span> any</span>,
<span class="paramdef">in <span class="parameter">do_drops</span> integer := 1</span>);
</div>
<div class="refsect1">
<div class="refsect1title">Description</div>
<p>Creates a key mapping function & table (as described in the doc section
<a href="sqlinverse.html">SQL Inverse Functions</a>)</p>
</div>
<div class="refsect1">
<div class="refsect1title">Parameters</div>
<div class="refsect2">
<span class="refsect2title">map_name – </span>
(string) the name of the mapping. This becomes the name of the
forward function (from parts to single int value) and participates in the name
of the lookup table (like MAP_<map_name>)</div>
<div class="refsect2">
<span class="refsect2title">part_defs – </span>
contains an array of name/type pairs describing the parts of the
mapping. The types are used in the MAP table as column types and the type names
are used in naming the referenced functions (one for each part) like :
<map_name>_<part_name></div>
<div class="refsect2">
<span class="refsect2title">do_drops – </span>
integer (0, 1, 2 : default value 1)
this controls how the function will go about dropping the already existing
objects:
<ul>
<li>0 - don't issue any DROP TABLE/PROCEDURE/INVERSE calls, just the CREATE statements</li>
<li>1 - do the DROPs before issuing the actual CREATE statements</li>
<li>2 - do *only* the DROPs without the CREATEs.</li>
</ul>
</div>
</div>
<div class="refsect1">
<div class="refsect1title">See Also</div>
<p>
<a href="fn_sinv_create_inverse.html">sinv_create_inverse</a>,
<a href="fn_sinv_drop_inverse.html">sinv_drop_inverse</a>
</p>
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