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:
Dec. 09, 2008
Filed:
Apr. 10, 2003
Richard J. Stevens, Mantorville, MN (US);
David A. Wall, Rochester, MN (US);
Richard J. Stevens, Mantorville, MN (US);
David A. Wall, Rochester, MN (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
An improved method, system, and article of manufacture for issuing a query against multiple data sources that may not each contain all the fields involved in the query is provided. A diverse query targeting the multiple data sources may be decomposed into individual query predicates. For each data source, an effective query may be generated by removing, from the diverse query, individual predicates involving fields not contained in the data source. Partial results received in response to issuing the effective queries against their corresponding data sources may be merged using any suitable technique.