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<?xml version="1.0" encoding="ISO-8859-1"?>
<!--
-
- This file is part of the OpenLink Software Virtuoso Open-Source (VOS)
- project.
-
- Copyright (C) 1998-2018 OpenLink Software
-
- This project is free software; you can redistribute it and/or modify it
- under the terms of the GNU General Public License as published by the
- Free Software Foundation; only version 2 of the License, dated June 1991.
-
- This program is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
-
- You should have received a copy of the GNU General Public License along
- with this program; if not, write to the Free Software Foundation, Inc.,
- 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-
-->
<refentry id="fn_connection_id">
<refmeta>
<refentrytitle>connection_id</refentrytitle>
<refmiscinfo>ws</refmiscinfo>
</refmeta>
<refnamediv>
<refname>connection_id</refname>
<refpurpose>get connection identifier</refpurpose>
</refnamediv>
<refsynopsisdiv>
<funcsynopsis id="fsyn_connection_id">
<funcprototype id="fproto_connection_id">
<funcdef><function>connection_id</function></funcdef>
<paramdef></paramdef>
</funcprototype>
</funcsynopsis>
</refsynopsisdiv>
<refsect1 id="desc_connection_id"><title>Description</title>
<para>This function returns a string uniquely identifying the connection
in this server instance. It is usually a combination of server's
port number and a serial number of the client.</para>
<note><para>The value returned is usually not useful in HTTP invocation
context (VSP or SOAP), since consecutive requests by the same client will
typically not be on the same connection the way the server sees
it.</para></note>
</refsect1>
<refsect1 id="ret_connection_id"><title>Return Values</title>
<para>A <type>VARCHAR</type> connection identifier.
</para></refsect1>
<refsect1 id="examples_connection_id"><title>Examples</title>
<example id="ex_connection_id"><title>Return The Current Connection ID</title>
<screen>
SQL> select connection_id();
callret
VARCHAR
__________________________________
1111:4
</screen>
</example>
</refsect1>
<!--
<refsect1 id="seealso_connection_id"><title>See Also</title>
<para><link linkend="fn"></link></para>
</refsect1>
-->
</refentry>
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