Oracle Database Errors or Warnings from Error ORA-01251 to ORA-01260

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ORA-01251: Unknown File Header Version read for file number string
Cause: Read of the file header returned a record but its version cannot be identified. Either the header has been corrupted, or the file is not a valid database file.
Action: Have the operating system make the correct file available to the database, or recover the file.
ORA-01252: cannot prevent writes – file string in recovery manager backup
Cause: An attempt to make a tablespace read only or offline normal found that a recovery manager proxy backup is in progress. If the file is made offline or read-only, then the file header cannot be updated when the backup is complete.
Action: Wait for the Recovery Manager backup to complete and retry this command.

ORA-01253: cannot start online backup – file string in recovery manager backup
Cause: The specified file is being backed up by Recovery Manager.
Action: Wait for the Recovery Manager proxy backup to complete before starting another backup.
ORA-01254: cannot end online backup – file string in recovery manager backup
Cause: The specified file is being backed up by Recovery Manager.
Action: Wait for the Recovery Manager proxy backup to complete. Recovery Manager backup mode cannot be initiated or terminated manually.
ORA-01255: cannot shutdown – file string in recovery manager backup
Cause: An attempt to shutdown normally found that a Recovery Manager backup is still in progress.
Action: Wait for the Recovery Manager proxy backup to complete and retry this command.

ORA-01256: error in locking database file string
Cause: The file is in use by another database instance.
Action: Determine which database instance legitimately owns the file.
ORA-01257: cannot reuse database file string, unknown file size
Cause: The size of the raw partion cannot be determined
Action: Add the datafile/logfile by specifying the size parameter.
ORA-01258: unable to delete temporary file string
Cause: A DROP TABLESPACE INCLUDING CONTENTS AND DATAFILES or ALTER DATABASE TEMPFILE DROP INCLUDING DATAFILES operation was not able to delete a temporary file in the database.
Action: Subsequent errors describe the operating system error that prevented the file deletion. Fix the problem, if possible, and manually purge the file.
ORA-01259: unable to delete datafile string
Cause: A DROP TABLESPACE INCLUDING CONTENTS AND DATAFILES operation was not able to delete a datafile in the tablespace.
Action: Subsequent errors describe the operating system error that prevented the file deletion. Fix the problem, if possible, and manually purge the file.
ORA-01260: warning: END BACKUP succeeded but some files found not to be in backup mode
Cause: END BACKUP completed successfully for all files that were in online backup mode. However one or more modifiable files were found not to be in online backup mode. Backup of those files (if it was done) can be invalid and, if restored, can result in an inconsistent database.
Action: Check the alert log for a list of the files that were found not to be in backup mode. If there is a possibility that those files have been modified during online backup, then replace their backups with new ones.

Above are list of Oracle Database Errors or Warnings from Error ORA-01251 to ORA-01260 received while performing certain operation against Oracle Database or related products.

What are Oracle Database Error Messages?

Oracle Error Messages may be returned while using products which are part of Oracle Database.  Each Oracle Database Error or Warning Message mentioned above contains the Warning or Error Message Statement, a short explanation of the probable causes of the Error message, and a recommended action.

Hope this was helpful.

Thanks,
SQLServerF1 Team
Information about Oracle Database Error Messages or Warning Messages on Windows and Linux Operating Systems.

 

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