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:
May. 23, 2023
Filed:
Dec. 01, 2021
International Business Machines Corporation, Armonk, NY (US);
Martin Jungfer, Ostelsheim, DE;
Jens Peter Seifert, Gaertringen, DE;
Karl Fleckenstein, Malsch, DE;
Thomas Rech, Rittersheim, DE;
Alexander Zietlow, Sandhausen, DE;
Dirk Nakott, Stuttgart, DE;
Holger Hellmuth, Bensheim, DE;
Hans-Jürgen Zeltwanger, Weinsberg, DE;
International Business Machines Corporation, Armonk, NY (US);
Abstract
A tool for replacing a first database node of a database management system by a second database node. The tool receives an indication that the first database node received a data access request for accessing a database shared between the first database node and the second database node. The tool duplicates the data access request at the first database node. Responsive to a determination that the duplicated data access request includes a data changing statement and a previously executed statement, the tool modifies the duplicated data access request to prevent execution of the data changing statement and the previously executed statement at the second database node. The tool executes the modified duplicated data access request at the second database node. The tool replaces, based on a replacement condition being met, the first database node with the second database node in the database management system.