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<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.8 $ -->
<refentry xml:id="function.ingres-query" xmlns="http://docbook.org/ns/docbook">
<refnamediv>
<refname>ingres_query</refname>
<refpurpose>Send a SQL query to Ingres II</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<type>bool</type><methodname>ingres_query</methodname>
<methodparam><type>string</type><parameter>query</parameter></methodparam>
<methodparam choice="opt"><type>resource</type><parameter>link</parameter></methodparam>
</methodsynopsis>
<para>
<function>ingres_query</function> sends the given
<parameter>query</parameter> to the Ingres server.
</para>
<para>
The query becomes part of the currently open transaction. If
there is no open transaction, <function>ingres_query</function>
opens a new transaction. To close the transaction, you can either
call <function>ingres_commit</function> to commit the changes
made to the database or <function>ingres_rollback</function> to
cancel these changes. When the script ends, any open transaction
is rolled back (by calling
<function>ingres_rollback</function>). You can also use
<function>ingres_autocommit</function> before opening a new
transaction to have every SQL query immediately committed.
</para>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<para>
<variablelist>
<varlistentry>
<term><parameter>query</parameter></term>
<listitem>
<para>
A valid SQL query (see the Ingres SQL reference guide).
</para>
<para>
Some types of SQL queries can't be sent with this function:
<itemizedlist>
<listitem>
<simpara>
close (see <function>ingres_close</function>)
</simpara>
</listitem>
<listitem>
<simpara>
commit (see <function>ingres_commit</function>)
</simpara>
</listitem>
<listitem>
<simpara>
connect (see <function>ingres_connect</function>)
</simpara>
</listitem>
<listitem>
<simpara>
disconnect (see <function>ingres_close</function>)
</simpara>
</listitem>
<listitem>
<simpara>get dbevent</simpara>
</listitem>
<listitem>
<simpara>prepare to commit</simpara>
</listitem>
<listitem>
<simpara>
rollback (see <function>ingres_rollback</function>)
</simpara>
</listitem>
<listitem><simpara>savepoint</simpara></listitem>
<listitem>
<simpara>
set autocommit (see <function>ingres_autocommit</function>)
</simpara>
</listitem>
<listitem>
<simpara>all cursor related queries are unsupported</simpara>
</listitem>
</itemizedlist>
</para>
</listitem>
</varlistentry>
<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>
&return.success;
</para>
</refsect1>
<refsect1 role="examples">
&reftitle.examples;
<para>
<example>
<title><function>ingres_query</function> example</title>
<programlisting role="php">
<![CDATA[
<?php
ingres_connect($database, $user, $password);
ingres_query("select * from table");
while ($row = ingres_fetch_row()) {
echo $row[1];
echo $row[2];
}
?>
]]>
</programlisting>
</example>
</para>
</refsect1>
<refsect1 role="seealso">
&reftitle.seealso;
<para>
<simplelist>
<member><function>ingres_fetch_array</function></member>
<member><function>ingres_fetch_object</function></member>
<member><function>ingres_fetch_row</function></member>
<member><function>ingres_commit</function></member>
<member><function>ingres_rollback</function></member>
<member><function>ingres_autocommit</function></member>
</simplelist>
</para>
</refsect1>
</refentry>
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