Method and apparatus for reapplying changes to a database
US5974425A · kind A · utility
42Cited by
6References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 18, 1996 |
| Grant date | Oct 26, 1999 |
| Priority date | — |
| Expiry date | Dec 18, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99953
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for reapplying changes to a database uses a recovery log for recording all changes applied to the database so that the changes may be reapplied to the database during database recovery. Whenever a change is written to a storage device, the recovery log is updated to indicate that the particular change has been written to the storage device. During recovery, the data in the recovery log is sorted by file ID, data block ID, record type and version ID.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.