Patent №
US 8,060,495
Granted
2011-11-15
Filed 2008
Owner
INTERNATIONAL BUSINESS MACHINES CORPORATION
Lab
AI components
2
kr · planning
Assignment
Recorded
Dataset
AIPD
2023_r1 edition
Application
12255520
An apparatus, system, and method are disclosed for improving query execution plan efficiency in a database management system. The present invention binds both static database queries and dynamic database queries to new query execution plans (QEPs) that produce the same result set as a former QEP bound to the database queries. Next, the present invention identifies one of the former QEPs and the new QEP as an active QEP and automatically collects execution statistics for one of the former QEPs and the new QEP. Finally, the present invention automatically selects one of the former QEPs and the new QEP as the active QEP in response to completion of the automatic collection of execution statistics, the active QEP selected such that the automatically selected QEP provides optimal execution performance based on performance criteria in comparison to the automatically unselected QEP, the active QEP selected based on the execution statistics.
AI classification
Ownership
INTERNATIONAL BUSINESS MACHINES CORPORATION
assignment · 221310922
Assignors
BEAVIN, THOMAS A., BOSSMAN, PATRICK D., FUH, YOU-CHIN, PANNU, ADARSH R., PURCELL, TERENCE P.
On an employer assignment, the assignors are typically the inventors.