Athurumithuru wrote:is it physical standby or logical standby database?
Mistakenly I have configure dataguard on different versions. Primary is 188.8.131.52.0 and StandBy is 184.108.40.206.0.
Log shipping is perfectly working, but cannot put StandBy in read only mode.
Pls help me to upgrade StandBy to 220.127.116.11.0.