Several enhancements and bug fixes have been made to Oracle Database Release 12.2 since its release on Oracle Cloud in November 2016. However, these improvements have not yet been gathered into a PSU. Database Classic Cloud Service is making available a “sync-up” patch that includes these many improvements and prepares your database deployment for patching when the first PSU becomes available for Release 12.2. You must apply this patch to bring Database Classic Cloud Service database deployments running Release 12.2 up-to-date and to permit PSUs to be applied later.
The following sections describe how to apply the “sync-up” patch to your database deployment. The procedure for applying the patch depends on the type of database running in the deployment.