Data management system that provides intelligent access plan...

Details Data management system that provides intelligent access plan... Data management system that provides intelligent access plan...

2006-08-29

2006-08-29

Wong, Don (Department: 2163)

Data processing: database and file management or data structures

Database design

Data structure types

C707S793000, C707S793000

Reexamination Certificate

active

07099858

ABSTRACT:
Disclosed is an apparatus, method, and program product for performing efficient database access plan caching. Unlike prior art mechanism that automatically discard stored access plans whenever the need for a different access plans is detected, stored plans are intelligently retained despite the handling of one or more infrequent queries that call for the use of a different plan.

REFERENCES:
patent: 6721724 (2004-04-01), Galindo-Legaria et al.
patent: 6847978 (2005-01-01), Ellis et al.
patent: 6985904 (2006-01-01), Kaluskar et al.
patent: 2004/0243555 (2004-12-01), Bolsius et al.
http://msdn.microsoft.com/library/en-us/architec/8—ar—sa—4azp.asp?frame=true, “Execution Plan Caching and Reuse,” printed Jan. 27, 2003.

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