Database system, server, query posing method, and data...

Details Database system, server, query posing method, and data... Database system, server, query posing method, and data...

2006-12-05

2006-12-05

Wong, Don (Department: 2163)

Data processing: database and file management or data structures

Database design

Data structure types

C707S793000, C707S793000, C707S793000, C707S793000

Reexamination Certificate

active

07146357

ABSTRACT:
An object of the present invention is to avoid contention for resources in a parallel/decentralized database system so as to improve the performance of the system. A query posing method is implemented in a database system comprising a plurality of database servers each of which includes a database from which the same content can be retrieved and searches the database in response to a query request a front-end server that poses a query according to a predetermined rule and a management server that manages rules to be used by the front-end server. The management server acquires a processed query log relevant to a database server, and produces a rule according to the compatibility value of a query calculated using the acquired processed query log. Moreover, the front-end server poses the query according to the rule produced by the management server.

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Cathan Cook, “Database Architecture: The Storage Engine”, a database management system from Microsoft, http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnsql2k/html/thestorage engine.asp , Jul. 2001, 14 pages.

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