Cause
A redo log containing Parallel Redo has been detected. The current Oracle release cannot process this format of redo.
A redo log containing Parallel Redo has been detected. The current Oracle release cannot process this format of redo.
Use a later release that supports Parallel Redo. to process this log.
Try the following links for this error:
http://docs.oracle.com/cd/E16655_01/server.121/e26079/e0.htm
https://community.oracle.com/message/2029576
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