Database query
US8812485B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 29, 2012 |
| Grant date | Aug 19, 2014 |
| Priority date | — |
| Expiry date | Aug 29, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/24542
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Mechanisms for performing database queries are provided. With these mechanisms, in response to a query request, a query plan intended for minimum query response time and a query plan intended for minimum query total time for the query request are obtained execution of the minimum query response time query plan and the minimum query total time query plan is started. Before the execution of the minimum query total time query plan reaches a specified point, an initial query result obtained from the execution of the minimum query response time query plan is output. In response to the execution of the minimum query total time query plan reaching the specified point, continuing the execution of the minimum query total time query plan to output remaining query results.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.