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<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision: 331312 $ -->
<refentry xml:id="function.cubrid-unbuffered-query" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
<refnamediv>
<refname>cubrid_unbuffered_query</refname>
<refpurpose>Perform a query without fetching the results into memory</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<type>resource</type><methodname>cubrid_unbuffered_query</methodname>
<methodparam><type>string</type><parameter>query</parameter></methodparam>
<methodparam choice="opt"><type>resource</type><parameter>conn_identifier</parameter></methodparam>
</methodsynopsis>
<para>
This function performs a query without waiting for that all query results have been complete. It will return
when the results are being generated.
</para>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<para>
<variablelist>
<varlistentry>
<term><parameter>query</parameter></term>
<listitem><para>A SQL query.</para></listitem>
</varlistentry>
<varlistentry>
<term><parameter>conn_identifier</parameter></term>
<listitem><para>The CUBRID connection. If the connection identifier is not specified, the last connection opened by <function>cubrid_connect</function> is assumed.</para></listitem>
</varlistentry>
</variablelist>
</para>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
For SELECT, SHOW, DESCRIBE or EXPLAIN statements returns a request identifier resource on success.
</para>
<para>
For other type of SQL statements, UPDATE, DELETE, DROP, etc, returns &true; on success.
</para>
<para>
&false; on failure.
</para>
</refsect1>
<refsect1 role="notes">
&reftitle.notes;
<note>
<para>
The benefits of <function>cubrid_unbuffered_query</function> come
at a cost: you cannot use <function>cubrid_num_rows</function> and
<function>cubrid_data_seek</function> on a result set returned from
<function>cubrid_unbuffered_query</function>.
</para>
</note>
</refsect1>
<refsect1 role="examples">
&reftitle.examples;
<example>
<title><function>cubrid_unbuffered_query</function> example</title>
<programlisting role="php">
<![CDATA[
<?php
$link = cubrid_connect("localhost", 30000, "demodb", "dba", "");
if (!$link)
{
die('Could not connect.');
}
$query = "select * from code";
$result = cubrid_unbuffered_query($query, $link);
while ($row = cubrid_fetch($result))
{
var_dump($row);
}
cubrid_close_request($result);
cubrid_disconnect($link);
?>
]]>
</programlisting>
</example>
</refsect1>
</refentry>
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