Title:
DATABASE MANAGEMENT SYSTEM AND INQUIRY PROCESSING METHOD
Document Type and Number:
Japanese Patent JP3819694
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an inquiry processing method for quickening inquiry processing.
SOLUTION: Distributing nodes 1-8 are provided with a charge T1 or a chart T2 in which database to be inquired are stored so as to be distributed so that the information can be extracted and the extracted information can be distributed to another node. Connecting nodes 9-11 rearrange the distributed pieces of information, and when the number of rearranged pieces of information is more than one, the pieces of information are merged, and collation with the inquiry is executed based on the merged information. A decision management node 12 accepts the inquiry, and analyzes the inquiry, and decides the distributing node and the connecting for operating the execution processing based on the analyzed result. Also, the decision managing node 12 outputs the result corresponding to the inquiry transmitted from the connecting node.
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Inventors:
Masashi Tsuchida
Nakano Yukio
Nobuo Kawamura
Kazuyoshi Negishi
Torii Shunichi
Nakano Yukio
Nobuo Kawamura
Kazuyoshi Negishi
Torii Shunichi
Application Number:
JP2000309449A
Publication Date:
September 13, 2006
Filing Date:
January 20, 1993
Export Citation:
Assignee:
株式会社日立製作所
International Classes:
G06F12/00; G06F15/173; G06F15/177; G06F17/30; (IPC1-7): G06F12/00; G06F15/177; G06F17/30
Other References:
Lakshmi M.S. et al.,Effectiveness of Parallel Joins,IEEE Trans. on Knowledge and Data Engineering,米国,IEEE,1990年12月,Vol.2,No.4,p.410-424
Attorney, Agent or Firm:
Sanshin Iwao
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