Oracle Solution for Error ora-15168
ORA-15168: rolling downgrade prevented by string
What triggered the Error:
One or more instances were blocking the rolling downgrade.What should we do to fix it:
Terminate or wait until the reported operation is complete before attempting the rolling downgrade to the cluster.
If this was not sufficient go over to:
Oracle Official Support Knowledge Center
Or maybe those geeks at: StackOverflow Board
Or maybe those geeks at: StackOverflow Board
