Oracle Error Message
ORA-01366: failed to find redo logs required for terminal apply
Reason for the Error
LogMiner failed to find all the expected log files required to complete the terminal apply, requested using the FINISH APPLY clause. During terminal apply, LogMiner does not wait for logs to be registered. It expects all logs between the starting point and the last log on any redo branch that it will or could mine through, to be present at the mining site.
Examine system.logmnr_log$ to see which logs are known to LogMiner. Then, locate or restore any missing logs and use the ALTER DATABASE REGISTER LOGICAL LOGFILE statement to register them. Alternatively, do not use the FINISH APPLY clause, but if activating a logical standby, only do this when you are sure that the missing log files can not be located and registered as this can lead to data loss.