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<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.6 $ -->
<refentry xml:id="function.ingres-num-rows" xmlns="http://docbook.org/ns/docbook">
<refnamediv>
<refname>ingres_num_rows</refname>
<refpurpose>Get the number of rows affected or returned by the last query</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<type>int</type><methodname>ingres_num_rows</methodname>
<methodparam choice="opt"><type>resource</type><parameter>link</parameter></methodparam>
</methodsynopsis>
<para>
This function is mainly meant to get the number of rows
modified in the database. If this function is called before
using <function>ingres_fetch_array</function>,
<function>ingres_fetch_object</function> or
<function>ingres_fetch_row</function> the server will delete
the result's data and the script won't be able to get them.
</para>
<para>
You should instead retrieve the result's data using one of
these fetch functions in a loop until it returns &false;,
indicating that no more results are available.
</para>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<para>
<variablelist>
<varlistentry>
<term><parameter>link</parameter></term>
<listitem>
<para>
The connection link identifier. If not specified, the last opened link
is used.
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
For delete, insert or update queries,
<function>ingres_num_rows</function> returns the number of rows
affected by the query. For other queries,
<function>ingres_num_rows</function> returns the number of rows
in the query's result.
</para>
</refsect1>
<refsect1 role="seealso">
&reftitle.seealso;
<para>
<simplelist>
<member><function>ingres_query</function></member>
<member><function>ingres_fetch_array</function></member>
<member><function>ingres_fetch_object</function></member>
<member><function>ingres_fetch_row</function></member>
</simplelist>
</para>
</refsect1>
</refentry>
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