Data processing: database and file management or data structures – Database design – Data structure types
Reexamination Certificate
2006-01-31
2006-01-31
Rones, Charles (Department: 2164)
Data processing: database and file management or data structures
Database design
Data structure types
C707S793000, C714S002000, C714S015000
Reexamination Certificate
active
06993537
ABSTRACT:
The invention relates to the recovery of data in a database of database records, following a failure of a media containing said database. The data recovery uses a backup of the database and a log of log records detailing any changes in the database which are not captured in the backup. The log is replayed starting with the most recent log record. It is the determined for each successive log record, that relates to an operation on a database record, whether processing the log record will result in the most recent state of the corresponding database record, and if so, the log record is processed. Subsequently additional data is restored from the backup.
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S Best, “How the Journaled File System performs logging”, Proceedings of the 4th Annual Linux Showcase and Conference, Oct. 10-14, 2000.
Bullock et al, “Recovery of Data Pages after Partial Page Writes”, IBM Technical Disclosure Bulletin, vol. 34, No. 3, Aug. 1991.
Buxton Robert F
Hobson Stephen J
Hopewell Paul
Kettley Paul
Millar Robert D
LaBaw Jeffrey S.
Lenovo ( Singapore) Pte. Ltd.
Ortiz Belix M.
Rones Charles
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