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git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@131648 c90b9560-bf6c-de11-be94-00142212c4b1
84 lines
3 KiB
XML
84 lines
3 KiB
XML
<?xml version="1.0" encoding="iso-8859-1"?>
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<!-- $Revision: 1.4 $ -->
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<!-- splitted from ./en/functions/pgsql.xml, last change in rev 1.2 -->
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<refentry id="function.pg-query">
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<refnamediv>
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<refname>pg_query</refname>
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<refpurpose>Execute a query</refpurpose>
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</refnamediv>
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<refsect1>
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<title>Description</title>
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<methodsynopsis>
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<type>resource</type><methodname>pg_query</methodname>
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<methodparam><type>resource</type><parameter>connection</parameter></methodparam>
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<methodparam><type>string</type><parameter>query</parameter></methodparam>
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</methodsynopsis>
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<para>
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<function>pg_query</function> returns a query result resource if
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query could be executed. It returns &false; on failure or if
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connection is not a valid connection. Details about the error can
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be retrieved using the <function>pg_last_error</function>
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function if connection is valid.
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<function>pg_last_error</function> sends an SQL statement to
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the PostgreSQL database specified by the
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<parameter>connection</parameter> resource. The
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<parameter>connection</parameter> must be a valid connection that
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was returned by <function>pg_connect</function> or
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<function>pg_pconnect</function>. The return value of this
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function is an query result resource to be used to access the
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results from other PostgreSQL functions such as
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<function>pg_fetch_array</function>.
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<note>
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<simpara>
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<parameter>connection</parameter> is an optional parameter for
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<function>pg_query</function>. If
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<parameter>connection</parameter> is not set, default
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connection is used. Default connection is the last connection
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made by <function>pg_connect</function> or
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<function>pg_pconnect</function>.
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</simpara>
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<simpara>
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Although <parameter>connection</parameter> can be omitted, it
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is not recommended, since it could be a cause of hard to find
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bug in script.
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</simpara>
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</note>
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</para>
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<note>
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<para>
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This function used to be called <literal>pg_exec()</literal>.
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<literal>pg_exec()</literal> is still available for compatibility
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reasons but users are encouraged to use the newer name.
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</para>
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</note>
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<para>
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See also <function>pg_connect</function>,
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<function>pg_pconnect</function>,
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<function>pg_fetch_array</function>,
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<function>pg_fetch_object</function>,
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<function>pg_num_rows</function>,
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and <function>pg_affected_rows</function>.
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</para>
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</refsect1>
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</refentry>
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<!-- Keep this comment at the end of the file
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Local variables:
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mode: sgml
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sgml-omittag:t
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sgml-shorttag:t
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sgml-minimize-attributes:nil
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sgml-always-quote-attributes:t
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sgml-indent-step:1
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sgml-indent-data:t
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indent-tabs-mode:nil
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sgml-parent-document:nil
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sgml-default-dtd-file:"../../../../manual.ced"
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sgml-exposed-tags:nil
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sgml-local-catalogs:nil
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sgml-local-ecat-files:nil
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End:
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vim600: syn=xml fen fdm=syntax fdl=2 si
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vim: et tw=78 syn=sgml
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vi: ts=1 sw=1
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-->
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