We’ve worked with upgrade product management to identify the nine most common upgrade use cases, and to provide you with a set of comprehensive scenarios that describe the steps to complete your upgrade. To read the Oracle Database 19c upgrade scenarios, follow this link, and select Upgrade and Migration Scenarios from the View list:
https://docs.oracle.com/en/database/oracle/oracle-database/19/install-and-upgrade.html
New scenarios are coming soon.
Let us know what you think!
— Contributed by Mark Bauer and Doug Williams