US Patent 7260578 Database-file link system and method therefor

Patent 7260578 was granted and assigned to Hitachi on August, 2007 by the United States Patent and Trademark Office.

Overview Structured Data Issues Contributors Activity

Is a

Patent

Patent attributes

Current Assignee

Hitachi

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7260578

Date of Patent

August 21, 2007

Patent Application Number

10847333

Date Filed

May 18, 2004

Patent Primary Examiner

‌

Etienne LeRoux

Patent abstract

A database management system has a data structure intending to manage external files and an external file linking function extension called during an update process of a record including the data structure, whereby update of the record is carried out in synchronism with update of the content of an external file to maintain matching between the record and the external file. By reflecting the update on only a link destination file of an updated database record in accordance with the number of references from the database record to the file, the edition management of files using the database can be realized.