We want to upgrade Oracle to 19.3
Our current environment looks like this
- ArcGIS Enterprise 10.8.1
- Oracle Database 12c Release 12.1.0.1.0 - 64bit Production
- ArcGIS Desktop/Geodatabase 10.6.1 with the "Support for Oracle 19c Patch" installed


I don't think I need to patch ArcGIS Enterprise as it is at 10.8.1, so it looks like I have all the Esri patches installed that I will need.
So, the plan is right now to:
- Setup a new test server with an empty Oracle 19c (64 bit) 19.3.0.0.0 database
- Add the shapelib file to the server and set it's path in the new database
- Export everything from our production database with the export data pump
- Import everything into the new 19c database
Does this sound reasonable?
https://desktop.arcgis.com/en/system-requirements/10.6/database-requirements-oracle.htm
https://support.esri.com/en/download/7734