Query restart based on changing system resources and an amount of data change
US10409812B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2016 |
| Grant date | Sep 10, 2019 |
| Priority date | — |
| Expiry date | Jul 31, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/24542
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Techniques are described for re-starting queries based on an expected amount of data to be changed in a database. Embodiments of the present disclosure may generally receive a first query to be executed against a database, and start execution of the first query against the database according to a first access plan. Upon detecting, during execution of the first query, that an amount of data to be changed in one or more tables of the database as a result of a second query satisfies a predetermined condition, embodiments of the present disclosure determine whether to re-start execution of the first query against the database with a second access plan different from the first access plan or wait a predetermined period of time before re-starting execution of the first query against the database with the first access plan.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.