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<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision: 317663 $ -->
<refentry xml:id="function.sqlsrv-query" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
<refnamediv>
<refname>sqlsrv_query</refname>
<refpurpose>Prepares and executes a query.</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<type>mixed</type><methodname>sqlsrv_query</methodname>
<methodparam><type>resource</type><parameter>conn</parameter></methodparam>
<methodparam><type>string</type><parameter>sql</parameter></methodparam>
<methodparam choice="opt"><type>array</type><parameter>params</parameter></methodparam>
<methodparam choice="opt"><type>array</type><parameter>options</parameter></methodparam>
</methodsynopsis>
<para>
Prepares and executes a query.
</para>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<para>
<variablelist>
<varlistentry>
<term><parameter>conn</parameter></term>
<listitem>
<para>
A connection resource returned by <function>sqlsrv_connect</function>.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>sql</parameter></term>
<listitem>
<para>
The string that defines the query to be prepared and executed.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>params</parameter></term>
<listitem>
<para>
An array specifying parameter information when executing a parameterized query.
Array elements can be any of the following:
<simplelist>
<member>A literal value</member>
<member>A PHP variable</member>
<member>An array with this structure:
array($value [, $direction [, $phpType [, $sqlType]]])</member>
</simplelist>
The following table describes the elements in the array structure above:
</para>
<table>
<title>Array structure</title>
<tgroup cols="2">
<thead>
<row>
<entry>Element</entry>
<entry>Description</entry>
</row>
</thead>
<tbody>
<row>
<entry>$value</entry>
<entry>A literal value, a PHP variable, or a PHP by-reference variable.</entry>
</row>
<row>
<entry>$direction (optional)</entry>
<entry>One of the following SQLSRV constants used to indicate the
parameter direction: SQLSRV_PARAM_IN, SQLSRV_PARAM_OUT, SQLSRV_PARAM_INOUT.
The default value is SQLSRV_PARAM_IN.</entry>
</row>
<row>
<entry>$phpType (optional)</entry>
<entry>A SQLSRV_PHPTYPE_* constant that specifies PHP data type of the
returned value.</entry>
</row>
<row>
<entry>$sqlType (optional)</entry>
<entry>A SQLSRV_SQLTYPE_* constant that specifies the SQL Server data
type of the input value.</entry>
</row>
</tbody>
</tgroup>
</table>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>options</parameter></term>
<listitem>
<para>
An array specifing query property options. The supported keys are described
in the following table:
</para>
<table>
<title>Query Options</title>
<tgroup cols="3">
<thead>
<row>
<entry>Key</entry>
<entry>Values</entry>
<entry>Description</entry>
</row>
</thead>
<tbody>
<row>
<entry>QueryTimeout</entry>
<entry>A positive integer value.</entry>
<entry>Sets the query timeout in seconds. By default, the driver will
wait indefinitely for results.</entry>
</row>
<row>
<entry>SendStreamParamsAtExec</entry>
<entry>&true; or &false; (the default is &true;)</entry>
<entry>Configures the driver to send all stream data at execution (&true;),
or to send stream data in chunks (&false;). By default, the value is set
to &true;. For more information, see <function>sqlsrv_send_stream_data</function>.</entry>
</row>
<row>
<entry>Scrollable</entry>
<entry>SQLSRV_CURSOR_FORWARD, SQLSRV_CURSOR_STATIC, SQLSRV_CURSOR_DYNAMIC,
or SQLSRV_CURSOR_KEYSET</entry>
<entry>See <link xlink:href="&url.sqlsrv.specify.cursortype;">Specifying
a Cursor Type and Selecting Rows</link> in the Microsoft SQLSRV documentation.</entry>
</row>
</tbody>
</tgroup>
</table>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
Returns a statement resource on success and &false; if an error occurred.
</para>
</refsect1>
<refsect1 role="examples">
&reftitle.examples;
<para>
<example>
<title><function>sqlsrv_query</function> example</title>
<programlisting role="php">
<![CDATA[
<?php
$serverName = "serverName\sqlexpress";
$connectionInfo = array( "Database"=>"dbName", "UID"=>"username", "PWD"=>"password" );
$conn = sqlsrv_connect( $serverName, $connectionInfo);
if( $conn === false ) {
die( print_r( sqlsrv_errors(), true));
}
$sql = "INSERT INTO Table_1 (id, data) VALUES (?, ?)";
$params = array(1, "some data");
$stmt = sqlsrv_query( $conn, $sql, $params);
if( $stmt === false ) {
die( print_r( sqlsrv_errors(), true));
}
?>
]]>
</programlisting>
</example>
</para>
</refsect1>
<refsect1 role="notes">
&reftitle.notes;
<para>
For statements that you plan to execute only once, use <function>sqlsrv_query</function>.
If you intend to re-execute a statement with different parameter values, use
the combination of <function>sqlsrv_prepare</function> and <function>sqlsrv_execute</function>.
</para>
</refsect1>
<refsect1 role="seealso">
&reftitle.seealso;
<para>
<simplelist>
<member><function>sqlsrv_prepare</function></member>
<member><function>sqlsrv_execute</function></member>
</simplelist>
</para>
</refsect1>
</refentry>
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