Title:
データ利用システム
Document Type and Number:
Japanese Patent JP5604478
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide data utilization techniques capable of pursuing power saving to an utmost limit in data processing.SOLUTION: Each DB server 16 includes a common table holding the same data. Each table is imposed with a restriction to limit key items to one and a restriction to inhibit updating and erasing of data. A retrieval condition dividing processing unit of an AP server 14 divides retrieval conditions and allocates to a plurality of retrieval processing units 22, each of the retrieval processing units 22 issues corresponding SQL to a corresponding DB server 16, allocates arithmetic processing to a data processing unit 24 each time a fixed amount of retrieval results is transmitted, outputs a tabulation result to a retrieval result merging processing unit when processing results are ready for use, the retrieval result merging processing unit tabulates the tabulation results from each of the retrieval processing units 22, and outputs the retrieval results. In the AP server 14, a plurality of threads are initiated which function as the retrieval condition dividing processing unit, the plurality of retrieval processing units 22 or the like, and each of the threads are allocated to a plurality of CPU cores.
Inventors:
Yuzo Ishida
Junichi Kubo
Hideyo Sasaki
Hideo Sakai
井深 Michiharu
Junichi Kubo
Hideyo Sasaki
Hideo Sakai
井深 Michiharu
Application Number:
JP2012154824A
Publication Date:
October 08, 2014
Filing Date:
July 10, 2012
Export Citation:
Assignee:
Nomura Research Institute, Inc.
International Classes:
G06F17/30
Attorney, Agent or Firm:
Hiroyuki Okuda
Noriyuki Okuda
Noriyuki Okuda