oci_set_edition

Sets the database edition

&reftitle.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

&reftitle.parameters;

`edition`

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

&reftitle.notes;

### Oracle version requirement

This function is available from Oracle 11gR2 onwards.

### Persistent connections

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

### 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.

&reftitle.returnvalues;

&return.success;

&reftitle.examples;

### 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";

    ?>