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:
Feb. 14, 2012
Filed:
Jan. 30, 2009
Kenichi Kitamura, Yokohama, JP;
Mitsuo Miyazaki, Zushi, JP;
Kota Yamaguchi, Yamato, JP;
Hiroshi Yamakawa, Yokohama, JP;
Kenichi Kitamura, Yokohama, JP;
Mitsuo Miyazaki, Zushi, JP;
Kota Yamaguchi, Yamato, JP;
Hiroshi Yamakawa, Yokohama, JP;
Hitachi, Ltd., Tokyo, JP;
Hitachi Software Engineering Co., Ltd., Kanagawa, JP;
Abstract
There is provided a technique capable of executing a predetermined processing while continuing a database processing. Firstly, the database to be operated is switched from the main database to a duplicate database. The predetermined processing is executed to the main database which becomes the non-operation mode by the switching. Next, a database access request is distributed to the duplicate database which becomes the operation mode by the switching, thereby performing the database processing. Update information indicating the content of the update processing performed to the duplicate database is output. The output update information is reflected on the main data base for which the predetermined processing has been executed. After this, the database to be operated is switched from the duplicate database to the main database.