ORA-01177: data file does not match dictionary - probably old incarnation

admin

ORA-01177: data file does not match dictionary - probably old incarnation
Cause: When comparing the control file with the data dictionary after a CREATE
CONTROLFILE or OPEN RESETLOGS, it was noted that this datafile was
inconsistent with the dictionary. Most likely the file is a backup of a file that was
dropped from the database, and the same file number was reused for a new file. It
may also be that an incomplete recovery stopped at a time when this file number
was used for another datafile.
Action: Do a CREATE CONTROLFILE with the correct file or none at all.