Database Query Optimization Utilizing Remote Statistics Collection

A method, apparatus and program product to optimize a database query. In a first system having a first dataspace, a query plan is generated for the database query. Remote statistics collection associated with the database query is initiated on a second system having a second dataspace. The remote st...

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Bibliographic Details
Main Authors THIEMANN ULRICH, HU WEI, BESTGEN ROBERT JOSEPH, KETHIREDDY SHANTAN, FAUNCE MICHAEL S, PASSE ANDREW PETER
Format Patent
LanguageEnglish
Published 16.10.2008
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Summary:A method, apparatus and program product to optimize a database query. In a first system having a first dataspace, a query plan is generated for the database query. Remote statistics collection associated with the database query is initiated on a second system having a second dataspace. The remote statistics collection uses the second dataspace, which includes a current copy of at least a portion of the first dataspace on the first system. Database statistics are collected for the first system by analyzing the second dataspace and then communicating the collected database statistics to the first system for use in optimizing database queries executed by the first system.
Bibliography:Application Number: US20070735133