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:
Jul. 01, 2014
Filed:
Oct. 29, 2010
BO Gao, Beijing, CN;
Chang Jie Guo, Beijing, CN;
Zhong BO Jiang, Beijing, CN;
Wei Sun, Beijing, CN;
Kai Tang, Beijing, CN;
Feng Juan Wang, Beijing, CN;
Bo Gao, Beijing, CN;
Chang Jie Guo, Beijing, CN;
Zhong Bo Jiang, Beijing, CN;
Wei Sun, Beijing, CN;
Kai Tang, Beijing, CN;
Feng Juan Wang, Beijing, CN;
International Business Machines Corporation, Armonk, NY (US);
Abstract
A database system and a method of optimizing cross-database query. The database system includes a plurality of databases. At least two of the databases are stored with one or more data collections composed of tables with the same structure. A federated view of the data collection is created on each of the databases. A request routing layer for routing, in response to a query request crossing the data collections, the query request crossing the data collections to one of the at least two databases according to a predetermined routing rule, so as to query by using the federated view of the database.