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:
Jun. 25, 2013
Filed:
Jun. 01, 2011
Randy L. Egan, Rochester, MN (US);
Rafal P. Konik, Oronoco, MN (US);
Roger A. Mittelstadt, Byron, MN (US);
Mark W. Theuer, Rochester, MN (US);
Randy L. Egan, Rochester, MN (US);
Rafal P. Konik, Oronoco, MN (US);
Roger A. Mittelstadt, Byron, MN (US);
Mark W. Theuer, Rochester, MN (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
Techniques are disclosed for identifying impact of a patch. One embodiment of the invention provides a DBMS that is configured to manage one or more databases. The DBMS may receive a request to evaluate a patch for the DBMS. The DBMS provides a first execution environment that is not based on the patch and a second execution environment that is based on the patch. For each query, the DBMS compares a first access plan with a second access plan, where the first access plan is generated from the first execution environment and the second access plan is generated from the second execution environment. The DBMS identifies one or more queries having differing access plans, based on the comparisons.