Program product for optimizing parallel processing of database queries
US6009265A · kind A · utility
99Cited by
7References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 14, 1996 |
| Grant date | Dec 28, 1999 |
| Priority date | — |
| Expiry date | Mar 14, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99933
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present invention provides a system and method for retrieving data from a computerized database system. Prior to execution of a query statement, the system determines an optimal sequential execution plan for the query statement. The optimal sequential execution plan is used to determine an optimal parallel execution plan. During the execution of the query, run time variables are used to determine whether to use the sequential execution plan without modification or a modification of the parallel execution plan.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.