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git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@131648 c90b9560-bf6c-de11-be94-00142212c4b1
80 lines
3 KiB
XML
80 lines
3 KiB
XML
<?xml version="1.0" encoding="iso-8859-1"?>
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<!-- $Revision: 1.3 $ -->
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<!-- splitted from ./en/functions/ifx.xml, last change in rev 1.2 -->
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<refentry id="function.ifx-prepare">
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<refnamediv>
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<refname>ifx_prepare</refname>
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<refpurpose>Prepare an SQL-statement for execution</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>int</type><methodname>ifx_prepare</methodname>
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<methodparam><type>string</type><parameter>query</parameter></methodparam>
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<methodparam><type>int</type><parameter>conn_id</parameter></methodparam>
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<methodparam choice="opt"><type>int</type><parameter>cursor_def</parameter></methodparam>
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<methodparam><type>mixed</type><parameter>blobidarray</parameter></methodparam>
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</methodsynopsis>
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<para>
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Returns an integer <parameter>result_id</parameter> for use by
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<function>ifx_do</function>. Sets
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<parameter>affected_rows</parameter> for retrieval by the
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<function>ifx_affected_rows</function> function.
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</para>
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<para>
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Prepares <parameter>query</parameter> on connection
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<parameter>conn_id</parameter>. For "select-type" queries a
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cursor is declared and opened. The optional
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<parameter>cursor_type</parameter> parameter allows you to make
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this a "scroll" and/or "hold" cursor. It's a bitmask and can be
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either IFX_SCROLL, IFX_HOLD, or both or'ed together.
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</para>
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<para>
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For either query type the estimated number of affected rows is
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saved for retrieval by <function>ifx_affected_rows</function>.
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</para>
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<para>
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If you have BLOB (BYTE or TEXT) columns in the query, you can add
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a <parameter>blobidarray</parameter> parameter containing the
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corresponding "blob ids", and you should replace those columns
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with a "?" in the query text.
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</para>
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<para>
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If the contents of the TEXT (or BYTE) column allow it, you can
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also use "ifx_textasvarchar(1)" and "ifx_byteasvarchar(1)". This
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allows you to treat TEXT (or BYTE) columns just as if they were
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ordinary (but long) VARCHAR columns for select queries, and you
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don't need to bother with blob id's.
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</para>
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<para>
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With ifx_textasvarchar(0) or ifx_byteasvarchar(0) (the default
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situation), select queries will return BLOB columns as blob id's
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(integer value). You can get the value of the blob as a string
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or file with the blob functions (see below).
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</para>
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<para>
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See also: <function>ifx_do</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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