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git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@146503 c90b9560-bf6c-de11-be94-00142212c4b1
151 lines
4.1 KiB
XML
151 lines
4.1 KiB
XML
<?xml version="1.0" encoding="iso-8859-1"?>
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<!-- $Revision: 1.6 $ -->
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<!-- splitted from ./en/functions/oci8.xml, last change in rev 1.15 -->
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<refentry id="function.ocinlogon">
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<refnamediv>
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<refname>ocinlogon</refname>
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<refpurpose>Establishes a new connection to Oracle</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>ocinlogon</methodname>
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<methodparam><type>string</type><parameter>username</parameter></methodparam>
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<methodparam><type>string</type><parameter>password</parameter></methodparam>
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<methodparam choice="opt"><type>string</type><parameter>db</parameter></methodparam>
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</methodsynopsis>
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<para>
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<function>ocinlogon</function> creates a new connection to an
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Oracle 8 database and logs on. The optional third parameter can
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either contain the name of the local Oracle instance or the name
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of the entry in tnsnames.ora to which you want to connect. If
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the optional third parameter is not specified, PHP uses the
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environment variables ORACLE_SID (Oracle instance) or TWO_TASK
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(tnsnames.ora) to determine which database to connect to.
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</para>
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<para>
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<function>ocinlogon</function> forces a new connection. This
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should be used if you need to isolate a set of transactions. By
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default, connections are shared at the page level if using
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<function>ocilogon</function> or at the web server process level
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if using <function>ociplogon</function>. If you have multiple
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connections open using <function>ocinlogon</function>, all
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commits and rollbacks apply to the specified connection only.
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</para>
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<para>
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This example demonstrates how the connections are separated.
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<example>
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<title><function>ocinlogon</function> example</title>
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<programlisting role="php">
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<![CDATA[
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<?php
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echo "<html><pre>";
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$db = "";
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$c1 = ocilogon("scott", "tiger", $db);
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$c2 = ocinlogon("scott", "tiger", $db);
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function create_table($conn) {
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$stmt = ociparse($conn, "create table scott.hallo (test
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varchar2(64))");
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ociexecute($stmt);
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echo $conn." created table\n\n";
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}
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function drop_table($conn) {
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$stmt = ociparse($conn, "drop table scott.hallo");
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ociexecute($stmt);
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echo $conn." dropped table\n\n";
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}
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function insert_data($conn) {
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$stmt = ociparse($conn, "insert into scott.hallo
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values('$conn' || ' ' || to_char(sysdate,'DD-MON-YY HH24:MI:SS'))");
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ociexecute($stmt, OCI_DEFAULT);
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echo $conn." inserted hallo\n\n";
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}
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function delete_data($conn) {
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$stmt = ociparse($conn, "delete from scott.hallo");
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ociexecute($stmt, OCI_DEFAULT);
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echo $conn." deleted hallo\n\n";
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}
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function commit($conn) {
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ocicommit($conn);
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echo $conn." committed\n\n";
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}
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function rollback($conn) {
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ocirollback($conn);
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echo $conn." rollback\n\n";
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}
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function select_data($conn) {
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$stmt = ociparse($conn, "select * from scott.hallo");
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ociexecute($stmt, OCI_DEFAULT);
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echo $conn."----selecting\n\n";
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while (ocifetch($stmt)) {
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echo $conn." <".ociresult($stmt, "TEST").">\n\n";
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}
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echo $conn."----done\n\n";
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}
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create_table($c1);
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insert_data($c1);
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select_data($c1);
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select_data($c2);
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rollback($c1);
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select_data($c1);
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select_data($c2);
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insert_data($c2);
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commit($c2);
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select_data($c1);
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delete_data($c1);
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select_data($c1);
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select_data($c2);
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commit($c1);
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select_data($c1);
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select_data($c2);
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drop_table($c1);
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echo "</pre></html>";
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?>
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]]>
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</programlisting>
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</example>
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</para>
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<simpara>
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See also <function>ocilogon</function> and
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<function>ociplogon</function>.
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</simpara>
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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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