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. 12, 2006
Filed:
Jan. 07, 2004
Keriley K. Romanufa, Scarborough, CA;
Jeffrey J. Goss, Toronto, CA;
Matthew A. Huras, Ajax, CA;
Catherine S. Mcarthur, Uxbridge, CA;
Dale M. Mcinnis, Aurora, CA;
Michael J. Winer, Markham, CA;
Roger L. Q. Zheng, Richmond Hill, CA;
Keriley K. Romanufa, Scarborough, CA;
Jeffrey J. Goss, Toronto, CA;
Matthew A. Huras, Ajax, CA;
Catherine S. McArthur, Uxbridge, CA;
Dale M. McInnis, Aurora, CA;
Michael J. Winer, Markham, CA;
Roger L. Q. Zheng, Richmond Hill, CA;
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method and system for suspending log-based updates to a database in a manner that permits resumption of log-based updating without reinitializing the database. The method and system thereby permit efficient alternation between a log-based update mode and a database access mode. Unplayed log records are protected as revisions of database pages at the time that the log-based update was suspended. This approach permits log-based updating to resume at the same point at which log-based updating was suspended. In order to ensure consistent data for access while in database access mode, a roll-back procedure creates consistent data pages that are used for access and discarded when log-based update resumes.