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<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.6 $ -->
<!-- splitted from ./en/functions/sesam.xml, last change in rev 1.1 -->
<refentry id="function.sesam-affected-rows">
<refnamediv>
<refname>sesam_affected_rows</refname>
<refpurpose>
Get number of rows affected by an immediate query
</refpurpose>
</refnamediv>
<refsect1>
<title>Description</title>
<methodsynopsis>
<type>int</type><methodname>sesam_affected_rows</methodname>
<methodparam><type>string</type><parameter>result_id</parameter></methodparam>
</methodsynopsis>
<para>
<parameter>result_id</parameter> is a valid result id returned by
<function>sesam_query</function>.
</para>
<para>
Returns the number of rows affected by a query associated with
<parameter>result_id</parameter>.
</para>
<para>
The <function>sesam_affected_rows</function> function can only
return useful values when used in combination with "immediate"
SQL statements (updating operations like
<literal>INSERT</literal>, <literal>UPDATE</literal> and
<literal>DELETE</literal>) because SESAM does not deliver any
"affected rows" information for "select type" queries. The
number returned is the number of affected rows.
</para>
<para>
<example>
<title><function>sesam_affected_rows</function> example</title>
<programlisting role="php">
<![CDATA[
<?php
$result = sesam_execimm("DELETE FROM PHONE WHERE LASTNAME = '" . strtoupper($name) . "'");
if (!$result) {
/* ... error ... */
}
echo sesam_affected_rows($result).
" entries with last name " . $name . " deleted.\n";
?>
]]>
</programlisting>
</example>
</para>
<para>
See also <function>sesam_query</function> and
<function>sesam_execimm</function>.
</para>
</refsect1>
</refentry>
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