ORA-16816: incorrect database role
Cause:
The Data Guard broker detected that the specified database had a different database role than that recorded in the Data Guard broker configuration. This could be the result of a failed switchover or failover operation, or a switchover or failover operation performed with SQL*Plus.
Action:
Check the Data Guard broker documentation to see how to recover from failed role change operations, or from role changes that were performed using SQL*Plus for databases managed by Data Guard broker.
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