Flashback database

Details Flashback database Flashback database

2007-01-11

2009-12-08

Breene, John E (Department: 2162)

Data processing: database and file management or data structures

Database design

Data structure types

C707S793000

Reexamination Certificate

active

07631018

ABSTRACT:
Techniques are described herein for returning a repository to a prior state. The repository may be, for example a database, and the prior state may be, for example the consistent state that the database had at a particular point in time in the past. When a operator-caused error has been introduced to the database by changes made by an already-committed transaction, the techniques described herein may be used to recover from the error by returning the database to a point in time prior to the commit time of the transaction that introduced the error. The techniques involve the generation of “physical undo” information, and the use of the physical undo information in conjunction with physiological undo and physiological redo to efficiently return a repository to the prior state.

REFERENCES:
patent: 5369764 (1994-11-01), Blair
patent: 5721918 (1998-02-01), Nilsson et al.
patent: 5778165 (1998-07-01), Saxon
patent: 5850507 (1998-12-01), Ngai et al.
patent: 5857204 (1999-01-01), Lordi et al.
patent: 5983361 (1999-11-01), Lee et al.
patent: 5996088 (1999-11-01), Frank et al.
patent: 2002/0116404 (2002-08-01), Cha et al.
patent: 2003/0061537 (2003-03-01), Cha et al.
patent: 0618534 (1994-10-01), None
International Searching Authority, International Search Report and Written Opinion, PCT/US2004/010017, dated May 27, 2005, 19 pgs).
Current Claims, PCT/US2004/010017, pp. 1-5, 2004.
European Patent Office, “Communication Pursuant to Article 96(2) EPC,” App. No. 04760515.9, dated Juje 8, 2006, 5 pgs.
Current Claims, Appl No. 04760515.9, 7 pgs, 2004.
Aaron B. Brown et al., “Rewind, Repair, Replay: Three R's to Dependability”, undated, 8 pgs, 2002.
D.S. Milojicic et al. S.J. 1995. Operating system support for concurrent remote task creation. In Proceedings of the 9thInternational Symposium on Parallel Processing (Apr. 25-28, 1995). IPPS. IEEE Computer Society, Washington, D.C.
J. Lin et al. 1996. Segmented fuzzy checkpointing for main memory databases. In Proceedings of the 1996 ACM Symposium on Applied Computing, Feb. 17-19, SAC '96. ACM Press, NY, NY, 158-165.
C.B. Zilles. 2002 Master/Slave speculative parallelization and approximate code. Doctoral Thesis. UMI Order No. AA/3072828.

Affiliated with

Also associated with

Rating

Flashback database does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Flashback database, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flashback database will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4123771