Risk-premium-based database-query optimization
US8898142B2 · kind B2 · utility
5Cited by
4References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 29, 2009 |
| Grant date | Nov 25, 2014 |
| Priority date | — |
| Expiry date | Jun 8, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/24542
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Embodiments of the present invention are directed to query-optimization methods and systems that employ risk premiums assigned to database operations in order to increase the robustness and reliability of the evaluation and selection of query-execution plans for executing high-level database queries. Using risk-premium estimates, selection of query-execution plans that include potentially inefficient database operations and inefficient database-operation-execution sequences, often selected by currently available query-optimization methods and systems, are avoided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.