Transaction log management in a disconnectable computer and network
US6192365A · kind A · utility
167Cited by
55References
36Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 3, 1996 |
| Grant date | Feb 20, 2001 |
| Priority date | — |
| Expiry date | Sep 3, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99953
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus are disclosed for managing a transaction log which contains updates representing operations performed on a database replica in a network of disconnectable computers. The invention provides for compression of the log by the identification and removal of redundant updates. Log compression removes apparent inconsistencies between operations performed on disconnected computers, reduces storage requirements on each computer, and speeds up transaction synchronization when the computers are reconnected. The invention also provides for restoration of prior versions of database objects using the log.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.