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:
May. 26, 1998
Filed:
Aug. 08, 1996
Bradley Mark Hammond, Bellevue, WA (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
A system for creating database partial replicas is provided where the referential integrity of the original database is maintained in the partial replica. Filters are specified to allow a user to select, using boolean logic, which rows of the original database are to be propagated to the partial replica. A row containing the primary key corresponding to a foreign key of a row propagated to the partial replica is also propagated to the partial replica. Also, a filter may be specified to include rows that are part of a relationship between multiple record sources. The result is a partial replica database containing only those records desired by the user but also all the records necessary to maintain the referential integrity of the original database.