Multi-buffering system supporting read/write access to different data source type

US9449032B2 · kind B2 · utility

Assignee

• SAP SE · DE

Inventors

• Martin Friedt · Oftersheim, DE
• Hans-Georg Beuter · Heidelberg, DE
• Helidon Dollani · Walldorf, DE
• Michael Wilking · Walldorf, DE
• Gregor Dieckmann · Walldorf, DE
• Ingo Raasch · Hockenheim, DE
• Stefan Dipper · Wiesloch, DE

Key dates

• Filing date: Apr 22, 2013
• Grant date: Sep 20, 2016
• Expiry date: Dec 28, 2033

Classification

• Technology area (CPC G): Physics
• CPC primary: G06F16/25
• WIPO field: Computer technology
• WIPO sector: Electrical engineering

Abstract

Embodiments provide a multi-buffering system in an application layer to support unified read/write access to different data source types of an underlying database layer. In a particular embodiment, the database layer comprises both a multi-dimensional data source (e.g. a cube), and another data source type (e.g. a Data Store Object—DSO). An abstract buffer component of the multi-buffering system is specialized into a delta buffer configured to read/write data of the cube, and into an after image buffer configured to read/write data of the DSO. A storage mechanism component of the multi-buffering system is specialized into a cache store configured to read/write data of the cube, and a calculation scenario store configured to read/write data of the DSO. The after image buffer may support certain aggregation rules during a DSO read/write operation. The calculation scenario store may leverage capabilities of an in memory database during a DSO read/write operation.