4.2.1.3.6 Downgrade OML4Py Server for Linux on On-Premises Database

To downgrade OML4Py server to version 2.0 on your on-premises Oracle AI Database 26ai, follow the steps below.

To downgrade the OML4Py server to version 2.0 on your on-premises Oracle AI Database 26ai, follow the steps below.

1. Download and Extract the OML4Py Server Package: Download the oml4py-server-linux-x86_64-2.1.zip package. Navigate to the directory where the zip file was downloaded, then unzip the package:

   unzip oml4py-server-linux-x86_64-2.1.zip

2. Downgrade OML4Py Server Using a SQL Script: Locate the downgrade script at server/pyqu0102000.sql. Connect to your database as a privileged user (such as SYSDBA), and run the script in the CDB$ROOT container first:

   SQL> @@pyqd0201000.sql

   Next, log into the Pluggable Database (PDB) where you need to downgrade OML4Py Server. For example, if your PDB is named ORCLPDB:

   SQL> alter session set container=ORCLPDB;
   SQL> @@pyqd0201000.sql

3. Verify the Downgrade: Run the following SQL command to confirm that OML4Py Server has been downgraded to version 2.0:

   SQL> select VALUE from sys.pyq_config where NAME = 'VERSION';

   The output should display:

   VALUE
   --------------------------------------------------------------------------------
   2.0