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:
Jun. 12, 2018
Filed:
Apr. 24, 2013
Guangyi Tao, Beijing, CN;
Yachun Lian, Beijing, CN;
Zichuan Lian, Beijing, CN;
Other;
Abstract
A database storage system based on optical disk includes a database management system installed on a server, a magnetic disk storage device and an optical disk storage device connecting, via a data connection, to the server. The database management system processes database management and data management in response to data requests and a database is created in the magnetic disk storage device, and includes a field structure generation module, a record index generation module, a storage space allocation module, a storage space status module, a record linkage module, a record split module and a database creation on optical disk module. The integrity of data is maintained during a database backup process. The optical disk containing a subdatabase accepts the management of the database management system to serve as a normal data source. The databases are hierarchically stored using the storage devices. The methods for database backup and restoration are provided.