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:
Apr. 04, 2017
Filed:
Sep. 25, 2014
Oracle International Company, Redwood Shores, CA (US);
Sam Idicula, Santa Clara, CA (US);
Sabina Petride, Hayward, CA (US);
Nipun Agarwal, Saratoga, CA (US);
Eric Sedlar, Portola Valley, CA (US);
Oracle International Corporation, Redwood Shores, CA (US);
Abstract
A database management server manages a distributed data set at least partially stored in volatile memory of a plurality of nodes. The database management server stores transaction logs in persistent storage corresponding to one or more database transactions performed on the distributed data set. In response to a query, a join operation is performed with assistance from the cluster. A snapshot identifier identifies a particular database state that is transactionally consistent. Based on the transactional logs, updated data blocks updated after the snapshot identifier of the query are identified. The cluster is instructed to perform one or more distributed join operations on the distributed data set without processing data in the updated data blocks. The database management server performs a partial join evaluation on the updated data blocks.