Dynamic query optimization using partial information
US5335345A · kind A · utility
154Cited by
3References
4Claims
0Family size
Assignee
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Key dates
| Filing date | Apr 11, 1990 |
| Grant date | Aug 2, 1994 |
| Priority date | — |
| Expiry date | Apr 11, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99935
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for executing a query comprising a sequence of operations to be performed on one or more relational databases comprises statistically sampling the relational databases at the times the operations are to be executed and then dynamically optimizing the performance of the operations based on the statistical samples obtained as a result of the sampling step.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.