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PHP oci_set_edition

PHP original manual for oci_set_edition [ show | php.net ]

oci_set_edition

(PHP 5 >= 5.3.2, PHP 7, PECL OCI8 >= 1.4.0)

oci_set_edition — Sets the database edition

Description

bool oci_set_edition ( string $edition )

Sets the database "edition" of objects to be used by a subsequent connections.

Oracle Editions allow concurrent versions of applications to run using the same schema and object names. This is useful for upgrading live systems.

Call oci_set_edition() before calling oci_connect(), oci_pconnect() or oci_new_connect().

If an edition is set that is not valid in the database, connection will fail even if oci_set_edition() returns success.

When using persistent connections, if a connection with the requested edition setting already exists, it is reused. Otherwise, a different persistent connection is created

Parameters

edition: Oracle Database edition name previously created with the SQL "CREATE EDITION" command.

Notes

Note: Oracle version requirement

This function is available from Oracle 11gR2 onwards.

Caution

Persistent connections

To avoid inconsistencies and unexpected errors, do not use ALTER SESSION SET EDITION to change the edition on persistent connections.

Caution

DRCP Connection Pooling

To avoid inconsistencies and unexpected errors when using editions and DRCP with Oracle 11.2.0.1, keep a one-to-one correspondence between the oci8.connection_class and the edition name used by applications. Each pooled server of a given connection class should only be used with one edition. This restriction has been removed with Oracle 11.2.0.2.

Return Values

Returns TRUE on success or FALSE on failure.

Examples

Example #1 Two scripts can use different versions of myfunc() at the same time


<?php

// File 1

echo "Version 1 of application\n";

oci_set_edition('ORA$BASE');
$c = oci_connect('hr', 'welcome', 'localhost/XE');

$s = oci_parse($c, "begin :r := myfunc(); end;");
oci_bind_by_name($s, ":r", $r, 20);
oci_execute($s);
echo "The result is $r\n";

?>


<?php

// File 2

echo "Version 2 of application\n";

oci_set_edition('E1');
$c = oci_connect('hr', 'welcome', 'localhost/XE');

$s = oci_parse($c, "begin :r := myfunc(); end;");
oci_bind_by_name($s, ":r", $r, 20);
oci_execute($s);
echo "The result is $r\n";

?>

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