The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 25, 1997
Filed:
Oct. 05, 1995
William Robert Bireley, Morgan Hill, CA (US);
Tammie Dang, San Jose, CA (US);
Paramesh Sampatrai Desai, San Jose, CA (US);
Donald James Haderle, Los Gatos, CA (US);
Fen-Ling Lin, San Jose, CA (US);
Maureen Mae McDevitt, San Jose, CA (US);
Akira Shibamiya, Los Altos, CA (US);
Bryan Frederick Smith, Morgan Hill, CA (US);
James Zu-chia Teng, San Jose, CA (US);
Hong Sang Tie, Morgan Hill, CA (US);
Yun Wang, Saratoga, CA (US);
Jerome Quan Wong, Mountain View, CA (US);
Kathryn Ruth Zeidenstein, Chicago, IL (US);
Kou Horng Yang, Santa Clara, CA (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A system and method for a computer system having a plurality of DBMS providing a coordinating and assisting function. If a DBMS performs a coordinating function, it is referred to as a coordinating DBMS. If a DBMS performs an assisting function, it is referred to as an assisting DBMS. Each coordinating DBMS receives a query from a user application, decomposes the query into multiple parallel tasks, and allocates the parallel tasks to all of the DBMSs in the system. Each assisting DBMS receives one or more parallel tasks from a coordinating DBMS, executes the parallel tasks and returns the results to the coordinating DBMS. The coordinating DBMSs and assisting DBMSs access one or more storage devices. Furthermore, the present invention comprises a system and method for dynamically disabling a parallel mode on the coordinating DBMSs and the assisting DBMSs.