Using an epoch number to optimize access with rowid columns and direct row access
US6366902B1 · kind B1 · utility
23Cited by
36References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 28, 1999 |
| Grant date | Apr 2, 2002 |
| Priority date | — |
| Expiry date | May 28, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99953
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method, apparatus, and article of manufacture for accessing a row in a database. In accordance with the present invention, the database is stored on a data storage device connected to a computer. An identification number is generated for a region, wherein the identification number associated with the region reflects row movement in the region. The identification number is updated when there is row movement in the region. When accessing a row in the region, whether to perform a direct row access is determined based on the identification number.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.