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:
Oct. 21, 2014
Filed:
Apr. 26, 2010
Ying Yan, Shanghai, CN;
Wen-syan LI, Shanghai, CN;
Jian Xu, Jiangsu Province, CN;
SAP AG, Walldorf, DE;
Abstract
A query handler may be configured to receive a query which is applicable against different combinations of a plurality of remote databases and a corresponding plurality of replica databases including at least some replicated data of respective ones of the remote databases, wherein the query arrives at a plurality of query arrival times and is executed at a plurality of query execution times. A replication manager may be configured to execute a synchronization plan for at least one selected replica database in which a selected synchronization timestamp of the at least one selected replica database is updated to a target synchronization timestamp, wherein the synchronization occurs during a synchronization processing time. A synchronization scheduler may be configured to schedule the synchronization plan to increase an information value of a query response, including selecting the target synchronization timestamp including relating the synchronization processing time to a selected query execution time.