Self-adjusting database-query optimizer
US9886492B2 · kind B2 · utility
1Cited by
6References
14Claims
0Family size
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Key dates
| Filing date | Nov 17, 2005 |
| Grant date | Feb 6, 2018 |
| Priority date | — |
| Expiry date | Sep 8, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/24549
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A database-management system (DBMS) initiates execution of an incoming database query according to an initial query-execution plan that identifies an expected path for execution. Then, at some point after execution of the query has begun, the DBMS concludes that execution has not proceeded along the expected path and, in response, chooses an alternative query-execution plan for continued execution of the query.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.