I cannot thank Tim Hall (https://oracle-base.com/misc/site-info, https://twitter.com/oraclebase) enough for his insight of late into the upgrade process that 12.x, 18.x, 19.x to 21c involves and how AutoUpgrade factors in (https://mikedietrichde.com/2021/08/24/upgrading-a-non-cdb-to-oracle-database-21c-with-autoupgrade/) – it’s a journey that needs some finessing.
As Oracle’s database and cloud offerings mature, there’s a melding of technologies that need to occur and we’re presently in that cycle:
- On-prem to cloud
- Non-CDB to CDB
- Migration of pre-18c databases to future state.
I’m with Tim 100% in that Oracle is a train we’ve hooked our carriage to and we are committed to (eventually) being dragged along with the ecosystem that’s sustained our data integrity. security and high availability for 30+ years.
We may be slow to embrace the technologies that are gradually becoming a part of current and future releases, but we all need to understand that change is a part of life. That if you chose technology as a career path, why would you ever stop learning about and adopting new things? If so, you’ve become a contradiction of yourself.