Database processor
US6996554B2 · kind B2 · utility
4Cited by
2References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 12, 2002 |
| Grant date | Feb 7, 2006 |
| Priority date | — |
| Expiry date | May 5, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99934
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A database processor is provided for on-line analytical processing. The processor is arranged to obtain multi-dimensional aggregates of an input relation. Prior to aggregation, the processor performs a pre-processing stage in which the processor identifies Group-bys that are equivalent to the root relation and thus can be derived directly from the root relation without computation. In this manner, the computational time and storage of the multidimensional aggregates is reduced since only unique Group-bys in the lattice are computed and stored.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.