System and method for asynchronous view maintenance
US6546402B1 · kind B1 · utility
121Cited by
5References
30Claims
0Family size
Assignee
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Key dates
| Filing date | Jun 5, 2000 |
| Grant date | Apr 8, 2003 |
| Priority date | — |
| Expiry date | May 30, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99952
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and system for refreshing materialized join views includes asynchronously evaluating changes to the base tables, i.e., evaluating changes for an intended time tintended at an evaluation time teval that is later than the intended time. Changes made to the base table between the intended time tintended and evaluation time teval are recursively compensated for. The results of the evaluating and compensating are then applied to the materialized view to refresh the view.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.