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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>ALLOCATE DESCRIPTOR</title><link rel="stylesheet" type="text/css" href="stylesheet.css" /><link rev="made" href="pgsql-docs@lists.postgresql.org" /><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><link rel="prev" href="ecpg-sql-commands.html" title="36.14. Embedded SQL Commands" /><link rel="next" href="ecpg-sql-connect.html" title="CONNECT" /></head><body id="docContent" class="container-fluid col-10"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="5" align="center">ALLOCATE DESCRIPTOR</th></tr><tr><td width="10%" align="left"><a accesskey="p" href="ecpg-sql-commands.html" title="36.14. Embedded SQL Commands">Prev</a> </td><td width="10%" align="left"><a accesskey="u" href="ecpg-sql-commands.html" title="36.14. Embedded SQL Commands">Up</a></td><th width="60%" align="center">36.14. Embedded SQL Commands</th><td width="10%" align="right"><a accesskey="h" href="index.html" title="PostgreSQL 16.2 Documentation">Home</a></td><td width="10%" align="right"> <a accesskey="n" href="ecpg-sql-connect.html" title="CONNECT">Next</a></td></tr></table><hr /></div><div class="refentry" id="ECPG-SQL-ALLOCATE-DESCRIPTOR"><div class="titlepage"></div><div class="refnamediv"><h2>ALLOCATE DESCRIPTOR</h2><p>ALLOCATE DESCRIPTOR — allocate an SQL descriptor area</p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><pre class="synopsis">
ALLOCATE DESCRIPTOR <em class="replaceable"><code>name</code></em>
</pre></div><div class="refsect1" id="id-1.7.5.20.3.3"><h2>Description</h2><p>
<code class="command">ALLOCATE DESCRIPTOR</code> allocates a new named SQL
descriptor area, which can be used to exchange data between the
PostgreSQL server and the host program.
</p><p>
Descriptor areas should be freed after use using
the <code class="command">DEALLOCATE DESCRIPTOR</code> command.
</p></div><div class="refsect1" id="id-1.7.5.20.3.4"><h2>Parameters</h2><div class="variablelist"><dl class="variablelist"><dt id="ECPG-SQL-ALLOCATE-DESCRIPTOR-NAME"><span class="term"><em class="replaceable"><code>name</code></em></span> <a href="#ECPG-SQL-ALLOCATE-DESCRIPTOR-NAME" class="id_link">#</a></dt><dd><p>
A name of SQL descriptor, case sensitive. This can be an SQL
identifier or a host variable.
</p></dd></dl></div></div><div class="refsect1" id="id-1.7.5.20.3.5"><h2>Examples</h2><pre class="programlisting">
EXEC SQL ALLOCATE DESCRIPTOR mydesc;
</pre></div><div class="refsect1" id="id-1.7.5.20.3.6"><h2>Compatibility</h2><p>
<code class="command">ALLOCATE DESCRIPTOR</code> is specified in the SQL
standard.
</p></div><div class="refsect1" id="id-1.7.5.20.3.7"><h2>See Also</h2><span class="simplelist"><a class="xref" href="ecpg-sql-deallocate-descriptor.html" title="DEALLOCATE DESCRIPTOR">DEALLOCATE DESCRIPTOR</a>, <a class="xref" href="ecpg-sql-get-descriptor.html" title="GET DESCRIPTOR">GET DESCRIPTOR</a>, <a class="xref" href="ecpg-sql-set-descriptor.html" title="SET DESCRIPTOR">SET DESCRIPTOR</a></span></div></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="ecpg-sql-commands.html" title="36.14. Embedded SQL Commands">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="ecpg-sql-commands.html" title="36.14. Embedded SQL Commands">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="ecpg-sql-connect.html" title="CONNECT">Next</a></td></tr><tr><td width="40%" align="left" valign="top">36.14. Embedded SQL Commands </td><td width="20%" align="center"><a accesskey="h" href="index.html" title="PostgreSQL 16.2 Documentation">Home</a></td><td width="40%" align="right" valign="top"> CONNECT</td></tr></table></div></body></html>
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