Deinstalling Oracle Database 12.2.0.1

This is part of a blog post serious where I install Oracle 18c on-premises in our Hands-On Lab and upgrade the Multitenant 12.2.0.1 database as well. But in order to safe space, deinstalling Oracle Database 12.2.0.1 is my next task. You find all the blog posts connected to each other here: Deinstalling Oracle Database 12.2.0.1 Installing Oracle Database 18.1.0  Patching Oracle 18.1.0 to 18.2.0 Upgrade Oracle 12.2.0.1 to Oracle Database 18c on-premises Deinstalling Oracle Database 12.2.0.1 In the Oracle Installation documentation you’ll find this part: Removing Oracle Database Software The documentation lists two removal options: Deinstallation with the Oracle Universal…

Oracle Workspace Manager (OWM) Clean Up in Oracle Database 11.2-12.2

I have blogged about Oracle Workspace Manager (OWM) clean up in Oracle Database 11.2-12.2 just a few weeks ago: https://mikedietrichde.com/2017/06/28/uninstalling-owm-from-a-multitenant-container-database/ Yet I didn’t cover all currently supported releases from Oracle Database 11.2.0.4 to Oracle Database 12.2.0.1. Therefore as part of my “Clean Up” blog series I will repeat myself just a bit but in a consistent format. Oracle Workspace Manager (OWM) Clean Up in Oracle Database 11.2-12.2 Before you start removing anything from your database please make sure you read my introductory blog post about how to Remove and Clean Up Components from Oracle 11.2 – 12.2 . You’ll find…

Downgrade Oracle Restart 12c – Grid Infrastructure only?

Can you downgrade your Oracle Restart installation from Oracle 12c back to Oracle 11g? Actually there’s no real direct downgrade supported for Oracle Restart. But of course there’s a way to do it. Basically it is: Deconfigure Oracle Restart in 12c Configure Oracle Restart in 11g But wait a minute. It is very important to know if you have upgraded your database already. If that is the case then first you MUST downgrade your database(s) as you can’t manage a higher version Oracle Database with a lower version Clusterware. So first of all, please downgrade your Oracle database(s) first: Downgrade…

Recap on Deinstall Routines

A few weeks ago I’Ve posted something about the deinstall utility as OUI doesn’t offer a “deinstall software” option anymore: How to deinstall “old” SW after 11.2.0.2 has been applied? And I’ve got some feedback (which is a good sign as it means that some of the content might be useful and will be read – and from the follow-up you see that we’ll read your comments and emails as well 🙂 ). Anyway, the feedback was either CRS deinstall does not work the right way or deinstall cleans up too many things. So Roy did follow up with our…