The following is the ORA-19646 error message, you can learn the cause and solution of the Oracle database error.

ORA-19646 cannot change size of datafile string from string to string

Cause: The indicated file was resized before this incremental backup was taken, but the incremental backup failed to set the file to the new size.

Solution: Examine the other messages which should be present to indicate the cause of the failure.


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