Review these options to migrate to Oracle Database Enterprise Edition from Oracle Database Standard Edition

If you have Oracle Database Standard Edition at a release earlier than the new Oracle Database release, then you can change it from a Standard Edition release to Oracle Database Enterprise Edition by selecting one of the following options:

• Perform a normal upgrade procedure.

  Install Oracle Enterprise Edition software in a new Oracle home, and follow the normal upgrade procedures as described in the "Upgrading Oracle Database" chapter. The Data Dictionary for Standard Edition and Enterprise Edition configurations are the same. The difference between Standard Edition and Enterprise Edition is in the options that are available in the server executable.

• Perform an In-Place Upgrade using the same Oracle home.

  If you have a Standard Edition database at a release earlier than the new release of Oracle Database, and you want to perform an in-place upgrade using the same Oracle home, then you must first upgrade the Standard Edition Database. After you complete the upgrade, use the procedure described here to install Oracle Database Enterprise Edition software and to move to Oracle Database Enterprise Edition.

1. Ensure that the release number of your Oracle Standard Edition server software is the same release as your Oracle Enterprise Edition server software.

2. Shut down your database.

3. If your operating system is Windows, then stop all Oracle services, including the OracleServiceSID Oracle service, where SID is the instance name.

4. Back up all database files under the current Oracle home that you must keep.

5. Deinstall the Standard Edition server software.

   Caution:

   This step deletes all existing database files that reside under the Oracle home.

   Run the deinstallation tool from the Oracle home. The deinstallation tool is available as a separate command (deinstall) under the Oracle home directory after installation. It is located under ORACLE_HOME\deinstall.

   To deinstall an Oracle home on Windows, use the following syntax:

   setup.exe –deinstall –home path_of_Oracle_home_to_be_deinstalled

   To deinstall an Oracle home on Linux and UNIX, use the following syntax:

   $ ./runInstaller –deinstall –home path_of_Oracle_home_to_be_deinstalled

   Note:

   Starting with Oracle Database 12c, the deinstallation tool is integrated with the database installation media. You can run the deinstallation tool using runInstaller on Linux and UNIX, or by using setup.exe on Windows with the -deinstall and -home options from the base directory of the Oracle Database, Oracle Database Client, or Oracle Grid Infrastructure installation media.

6. Install Oracle Enterprise Edition server software using Oracle Universal Installer (OUI).

   Select the same Oracle home that was used for the Standard Edition that you uninstalled, or select a new Oracle home. During the installation, be sure to select Enterprise Edition. When prompted, choose Software Only from the Database Configuration screen.

7. If you have an existing database, then set your ORACLE_SID to this preexisting database.

   If your existing database is on Windows, then you must recreate the database service by using the ORADIM utility.

8. Start up your database.