Updating cached database query results
US9235620B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 14, 2012 |
| Grant date | Jan 12, 2016 |
| Priority date | — |
| Expiry date | Oct 19, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06Q10/02
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A data cache platform maintains pre-computed database query results computed by a computation platform based on data maintained in the computation platform and is configured to determine probabilities of the cached database query results being outdated, to automatically issue re-computation orders to the computation platform for updating cached database query results on the basis of the determined probabilities of the pre-computed database query results being outdated and to receive the updated pre-computed database query results as results of the re-computation orders. The probability determination depends on a probabilistic model and on the occurrence of asynchronous real-time events. The real-time events are indeterministic with regard to the expiration of the cached database query results and only have a probabilistic influence on the discrepancies between the cached database query results maintained in the data cache platform and presumed actual database query results.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.