DATABASE MANAGEMENT DEVICE AND RECORDING MEDIUM WHERE PROGRAM THEREOF IS RECORDED

Japanese Patent JP3756349

B2

PROBLEM TO BE SOLVED: To actualize the database management device which can decrease the amount of communication data in synchronous processing as to a database system wherein plural corresponding data can be altered independently.
SOLUTION: Each information processor 2 generates dirty bits showing update states by combinations of its and opposite-side common bags as to respective tips in the common bags. A database process part 24 monitors operation to tips in an asynchronous period and updates the dirty bits of tips. A synchronizing process is carried out between two information processors 2 and after the dirty bits are transmitted, whether the contents transmission of the tips is allowed and the transmission direction are determined. Dirty bits related to the synchronizing process are updated and transmitted to other dirty bits corresponding to the same tips. Consequently, the amount of communication data is small and tips can be made coincident among ≥3 information processors 2.

JP5049172	Reverse proxy system
JP5010505	Memory system
JPS63300338	CONTROL SYSTEM FOR TRANSFER BETWEEN MEMORIES

Toshiyuki Iwai

JP17168199A

March 15, 2006

June 17, 1999

Click for automatic bibliography generation  

Sharp Corporation

G06F12/00; G06F15/177; G06F13/00; G06F17/30; (IPC1-7): G06F12/00; G06F15/177

JP9134304A
JP8241237A
JP9128280A
JP10149308A

中村正弘,「どこでもオフィス」のソフトウェア環境が整う,日経エレクトロニクス,日本,日経BP社,1994年10月10日,第619号,p.137-141
伊庭四郎,Outlook98日本語版をはじめ必携11製品ワークグループ対応PIMソフト,Hello!PC,日本,ソフトバンク株式会社,1998年 5月 8日,第5巻/第9号,p.162-181

Kenzo Hara International Patent Office
Kenzo Hara

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