Cause: Reporting filename for details of another error Action: See associated error messages

Cause: On header read the blocksize indicated in the control file did not match the blocksize contained in the log file. Action: Restore correct file or reset logs.

Cause: The archived log is not the correct log. It is a copy of a log file that has never been used for redo generation, or was an online log being prepared to be the current log. Action: Restore the correct log file.

Cause: Recovery was given a log that does not belong to current incarnation or one of the parent incarnation. There should be another log that contains the correct redo. Action: Supply the correct log file.

Cause: The control file change sequence number in the log file is greater than the number in the control file. This implies that the wrong control file is being used. Note that repeatedly causing this error can make it stop happening without correcting the real problem. Every attempt to open the database will advance the…

Cause: The internal information in an online log file does not match the control file. Action: Restore correct file or reset logs.

Cause: The log is smaller than the space allocated in it. May be the result of a shutdown abort while it was being written by the archiver. Action: Get a complete version of this log and use it for recovery. There should either be an online version of it or a copy that was successfully…

Cause: The archived log supplied for recovery was generated after the log that is needed. Can not yet use the log for applying redo. Action: Find correct archived log.

Cause: Check of log file header at database open found that an online log appears to be an incorrectly restored backup. Action: Restore correct file or reset

Cause: An IO error occurred on the named online log. Action: Restore accessibility to file, or restore file from backup.