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:
Oct. 03, 2017
Filed:
Nov. 25, 2014
Ivan Schreter, Mannheim, DE;
Muhammed Sharique, Pune, IN;
Deepak Shrivastava, Pune, IN;
Mihnea Andrei, Issy les Moulineaux, FR;
Ivan Schreter, Mannheim, DE;
Muhammed Sharique, Pune, IN;
Deepak Shrivastava, Pune, IN;
Mihnea Andrei, Issy les Moulineaux, FR;
SAP SE, Walldorf, DE;
SAP GLOBAL IP GROUP, Walldorf, DE;
Abstract
Disclosed herein are system, method, and computer program product embodiments for exporting and importing database tables in a database management system using multi-version concurrency control (MVCC). An embodiment operates by first initiating an export of a database table in the database management system. During the export transaction, temporary creation and deletion timestamps are identified from MVCC information associated with each row in the database table. Each temporary timestamp is associated with a database transaction. A timestamp map is then generated that associates the identified temporary timestamps with commit timestamps of the associated transactions. The database table, associated MVCC information, timestamp map, and snapshot timestamp of the export transaction are written to a binary file. When an import of the database table is initiated in a database management system, the database table is reconstructed from the table rows, associated MVCC information, timestamp map, and snapshot timestamp of the export transaction in the binary file.