Incremental maintenance of aggregated and join summary tables
US6983291B1 · kind B1 · utility
78Cited by
26References
87Claims
0Family size
Assignee
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Key dates
| Filing date | May 16, 2000 |
| Grant date | Jan 3, 2006 |
| Priority date | — |
| Expiry date | May 16, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/24556
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method, apparatus, and article of manufacture for incrementally maintaining a summary table derived from a plurality of base tables in a database stored on the computer. A plurality of modifications are applied to the base tables, and the applied modifications are then propagated to the summary table. The propagated modifications include an associated tag column containing a tag value, and the tag value indicates per row of the propagated modifications how many rows are to be added to or deleted from the summary table.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.