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:
Mar. 07, 2006
Filed:
May. 31, 2001
Iqbal A. Goralwalla, Pickering, CA;
Michael J. Winer, Markham, CA;
David C. Sharpe, Toronto, CA;
Matthew A. Huras, Ajax, CA;
Iqbal A. Goralwalla, Pickering, CA;
Michael J. Winer, Markham, CA;
David C. Sharpe, Toronto, CA;
Matthew A. Huras, Ajax, CA;
International Business Machines Corporation, Armonk, NY (US);
Abstract
A procedure optimizes command execution in a database system. According to one embodiment, the database system stores data records on data pages, and provides an identifier for each data page. The identifier indicates when any of the data records contained in the data page were last modified. A data record is selected from a data page and copied to a second storage area. Verification that the selected data record has not been modified since the time that is was copied to the second storage area is based upon the identifier, and then the command is executed.