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. 01, 2011
Filed:
Jun. 13, 2008
Akira Ito, Fujisawa, JP;
Kiyonori Hara, Yokohama, JP;
Shuji Shimada, Yokohama, JP;
Hitachi, Ltd., Tokyo, JP;
Hitachi Software Engineering Co., Ltd., Shinagawa-ku, JP;
Abstract
In a system cooperating a high performance computer and a low performance computer, a load of database processing upon the low performance computer is reduced. In a high performance center running DBMS for managing each version by using logical structure data of a database as physical structure pages and one or more terminals having a lower performance than that of the center, an update difference file is created for a center side received command input to the center, a backup file is created for a terminal side received command input to the terminal, and a version applied with the terminal side received command is updated to a version after update, by sequentially overwrite copying the backup file and update difference file.