ORA-01209: data file is from before the last RESETLOGS

admin

ORA-01209: data file is from before the last RESETLOGS
Cause: The reset log data in the file header does not match the control file. If the
database is closed or the file is offline, the backup is old because it was taken
before the last ALTER DATABASE OPEN RESETLOGS command. If opening a
database that is open already by another instance, or if another instance just
brought this file online, the file accessed by this instance is probably a different
version. Otherwise, a backup of the file probably was restored while the file was in
use.
Action: Make the correct file available to the database. Then, either open the
database, or execute ALTER SYSTEM CHECK DATAFILES.