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:
Aug. 09, 2016
Filed:
Dec. 19, 2012
Christian Bartholomä, Oftersheim, DE;
Michael Mühle, Walldorf, DE;
Hans-jörg Leu, Dossenheim, DE;
Steffen Geissinger, Wiesloch, DE;
Thorsten Glebe, Leimen, DE;
Martin Heidel, Walldorf, DE;
Lars Fricke, Karlsruhe, DE;
Volker Diesel, Tiefenthal, DE;
Christian Bensberg, Heidelberg, DE;
Christian Bartholomä, Oftersheim, DE;
Michael Mühle, Walldorf, DE;
Hans-Jörg Leu, Dossenheim, DE;
Steffen Geissinger, Wiesloch, DE;
Thorsten Glebe, Leimen, DE;
Martin Heidel, Walldorf, DE;
Lars Fricke, Karlsruhe, DE;
Volker Diesel, Tiefenthal, DE;
Christian Bensberg, Heidelberg, DE;
SAP GLOBAL IP GROUP, SAP AG, Walldorf, DE;
Abstract
Data replication in a database includes identifying a source database system. The source database includes a main index file and a delta log file. To create a replica, one or more symbolic links to the source database system are generated. The symbolic links identify a path to a physical location of the source database. A replica of the source database is generated based on the symbolic links. The replica includes a copy of the main index file and delta log file. Information associated with the replica and the symbolic links is stored in a recovery log. Replica are provided transparently to most database engine components by re-using partitioning infrastructure. Components 'see' replica as tables with a single partition; that partition is a local replica.