Need to upgrade the 11g (11.2.0.4) database to to 12.2.0.1
Question : What is the best way to upgrade the primary and standby databases without rebuilding standby database once again.?
Exisitng environemtn :
Primary DB : 11.2.0.4
Standby DB : 11.2.0.4
Target upgraded 12C env
Primary DB : 12.2.0.1
Standby DB : 12.2.0.1