Invention Grant
US08380660B2 Database system, database update method, database, and database update program
失效
数据库系统，数据库更新方法，数据库和数据库更新程序
- Patent Title: Database system, database update method, database, and database update program
- Patent Title (中): 数据库系统，数据库更新方法，数据库和数据库更新程序
-
Application No.: US12922051Application Date: 2009-03-31
-
Publication No.: US08380660B2Publication Date: 2013-02-19
- Inventor: Kazutoshi Honda
- Applicant: Kazutoshi Honda
- Applicant Address: JP Tokyo
- Assignee: NEC Corporation
- Current Assignee: NEC Corporation
- Current Assignee Address: JP Tokyo
- Priority: JP2008-097870 20080404
- International Application: PCT/JP2009/057033 WO 20090331
- International Announcement: WO2009/123342 WO 20091008
- Main IPC: G06F7/00
- IPC: G06F7/00 ; G06F17/00
Abstract:
A database system, which updates data by an application program, includes data storage for storing a master data and a shared memory area. The shared memory area includes: a first area, which loads the master data and to which an application program is allowed only to refer; and a second area, which stores a difference data generated when the application program updates the master data in the first area, and which the application program is allowed to refer to and update. The database system is robust against variation of application programs and environments.
Public/Granted literature
- US20110004583A1 DATABASE SYSTEM, DATABASE UPDATE METHOD, DATABASE, AND DATABASE UPDATE PROGRAM Public/Granted day:2011-01-06
Information query
