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:
Sep. 09, 2014
Filed:
Aug. 25, 2011
Margaret Susairaj, Sugar Land, TX (US);
Sumanta K. Chatterjee, Fremont, CA (US);
Margaret Susairaj, Sugar Land, TX (US);
Sumanta K. Chatterjee, Fremont, CA (US);
Oracle International Corporation, Redwood Shores, CA (US);
Abstract
A database management system (DBMS) maintains a clone database in a clone space without storing an entire copy of the database and without requiring a snapshot function from an underlying storage device. This DBMS may receive a database command to access a data block of the clone database, and may determine whether the data block is stored in the clone space. If the data block is not stored in the local clone space, the DBMS may receive the data block from a backup copy of the database. If the database command comprises a write operation, the DBMS may perform the write operation to update the data block, and may store the updated data block in the clone space. Also, if the database command comprises a read operation, the DBMS may perform the read operation on the data block received from the backup copy of the database.