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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_XMLType.getNumVal">
<refmeta>
<refentrytitle>XMLType.getNumVal</refentrytitle>
<refmiscinfo>xml</refmiscinfo>
</refmeta>
<refnamediv>
<refname>XMLType.getNumVal</refname>
<refpurpose>This function returns the integer-value of the current node like XPATH function 'number()'.</refpurpose>
</refnamediv>
<refsynopsisdiv>
<funcsynopsis id="fsyn_XMLType.getNumVal">
<funcprototype id="fproto_XMLType.getNumVal">
<funcdef><function>XMLType.getNumVal</function></funcdef>
</funcprototype>
</funcsynopsis>
</refsynopsisdiv>
<refsect1 id="desc_XMLType.getNumVal">
<title>Description</title>
<para>This function returns the integer-value of the current node. This is
similar to the XPATH function 'number()'.</para>
</refsect1>
<refsect1 id="ret_XMLType.getNumVal"><title>Return Types</title>
<para>The member function returns integer.</para>
</refsect1>
<refsect1 id="examples_XMLType.getNumVal">
<title>Examples</title>
<example id="ex_XMLType.getNumVal"><title>A table with an XMLType column</title>
<para>This populates a table with XML data and then selects the numeric value of
an 'empno' element from the appropriate record.</para>
<screen><![CDATA[
create table TEST_XMLS (I integer primary key, XMLVAL XMLType);
insert into TEST_XMLS values (1, XMLType('<emp><empno>221</empno><ename>John</ename></emp>'));
insert into TEST_XMLS values (2, XMLType('<po><pono>331</pono><poname>PO_1</poname></po>'));
insert into TEST_XMLS values (3, XMLType('<oil-rig id="14a" water="0.413"/><oil-rig id="14b" water="0.402"/>'));
select e.XMLVAL.extract ('//empno').getNumVal() as EMPNO
from TEST_XMLS as e
where e.XMLVAL.existsNode('/emp/empno')
EMPNO
DECIMAL
_______________________________________________________________________________
221
1 Rows. -- 00000 msec.
]]>
</screen>
</example>
</refsect1>
<refsect1 id="seealso_XMLType.getNumVal">
<title>See Also</title>
<para><link linkend="fn_XMLType.getStringVal"><function>XMLType.getStringVal()</function></link></para>
<para><link linkend="fn_XMLType.getClobVal"><function>XMLType.getClobVal()</function></link></para>
</refsect1>
</refentry>
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