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:
Feb. 06, 2007
Filed:
Oct. 24, 2003
Craig A. Friske, San Jose, CA (US);
Regina J. Liu, San Jose, CA (US);
James A. Ruddy, Gilroy, CA (US);
James Z. Teng, San Jose, CA (US);
Julie A. Watts, Morgan Hill, CA (US);
Craig A. Friske, San Jose, CA (US);
Regina J. Liu, San Jose, CA (US);
James A. Ruddy, Gilroy, CA (US);
James Z. Teng, San Jose, CA (US);
Julie A. Watts, Morgan Hill, CA (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
The present invention is related to a method and system for preserving an original table schema for a table in a database system that supports dynamic table schema changes. The method and system includes storing the original table schema for the table in a designated table prior to performing a schema change on the table. By storing the original table schema in the designated table, a backup copy of the table that includes rows which are not self-describing can be used for data recovery.