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. 16, 2014
Filed:
Aug. 17, 2006
John Sismanis, San Jose, CA (US);
Peter Jay Haas, San Jose, CA (US);
Berthold Reinwald, San Jose, CA (US);
John Sismanis, San Jose, CA (US);
Peter Jay Haas, San Jose, CA (US);
Berthold Reinwald, San Jose, CA (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method and system for discovering keys in a database. A minimal set of non-keys of the database are found. The database includes at least two entities and at least two attributes. The minimal set of non-keys includes at least two non-keys. Each entity independently includes a value of each attribute. A set of keys of the database is generated from the minimal set of non-keys. Each key of the generated set of keys independently is a unitary key consisting of one attribute or a composite key consisting of at least two attributes.