ORA-16432: inconsistent set of logs applied at a standby database

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ORA-16432: inconsistent set of logs applied at a standby database
Cause: Redo apply stoppedbecause it detected an inconsistency in the
progression of the SCNs. If this database is a bystander standby database, thisis
most likely due to a failover operation in which incompatible logs were applied
from the old and new primary databases.
Action: Determine theSTANDBY_BECAME_PRIMARY_SCN by selecting it from
V$DATABASE on the new primary database. Then, flashback the target database
to this SCN and use RMAN to delete all archive logs at or beyond this SCN.
Finally, fetch all terminal end of redo (EOR) logs corresponding to thefailover
operation from the new primary and register all these logs at the targetdatabase.
Restart redo apply.