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. 28, 1998
Filed:
Mar. 17, 1997
Applicant:
Inventors:
Robert Charles Plotkin, Irvington, NY (US);
Michael Stephen Schwartz, Bronx, NY (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
707101 ; 707-2 ; 707200 ;
Abstract
When migrating legacy database systems to a new database system the relationships between tables need to be preserved. Also, base tables and their children have to maintain their relationship. A database system which creates a system generated unique key is stored with the data which is loaded. To enable load, search, and retrieval to be efficient a data remapping function is defined which uses the system generated key to maintain the relationships which were maintained by a unique key in the legacy systems.