Oracle enterprise manager 12 c - Upgrade 18.104.22.168 to 22.214.171.124
Oracle Enterprise Manager 12c
Upgrade 126.96.36.199 to 188.8.131.52
1. Ensure that the tables in the repository do not contain and snapshot.
If there are any rows returned, drop snapshots as below
SQL> Drop snapshot log on <master>
2. Copy emkey from the existing Management Repository
3. Shut down all agents that will upload data to this OMS