Computing aggregates on distinct attribute values
US7725455B1 · kind B1 · utility
6Cited by
13References
20Claims
0Family size
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Key dates
| Filing date | Dec 31, 2003 |
| Grant date | May 25, 2010 |
| Priority date | — |
| Expiry date | Aug 25, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/24556
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A database system computes an aggregate on distinct values of at least one attribute for each of plural groups specified by multiple levels of grouping sets. Distinct values of the at least one attribute are identified and stored in a first table. The first table is used to compute aggregates for groups specified by a first grouping set and for groups specified by a second grouping set.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.