Invention Grant
- Patent Title: Efficient database multi-version concurrency control
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Application No.: US15359050Application Date: 2016-11-22
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Publication No.: US10346384B2Publication Date: 2019-07-09
- Inventor: Rahul Mittal , Jay Sudrik , Amit Pathak
- Applicant: SAP SE
- Applicant Address: DE Walldorf
- Assignee: SAP SE
- Current Assignee: SAP SE
- Current Assignee Address: DE Walldorf
- Agency: Schwegman Lundberg & Woessner, P.A.
- Main IPC: G06F16/30
- IPC: G06F16/30 ; G06F16/23

Abstract:
Example embodiments of a database employing an efficient form of multi-version concurrency control (MVCC) are described. In an example embodiment, in response to receiving an update command for a first row of a plurality of rows of a database, an image of the first row stored in a first memory area is stored in a second memory area. In a third memory area storing a first database structure and associated pointer corresponding to the image of the first row stored in the first memory area, a second data structure and associated pointer corresponding to the image of the first row in the second memory area are stored. The second data structure is linked to the first data structure. The image of the first row in the first memory area is overwritten with an image of a new version of the first row provided in the update command.
Public/Granted literature
- US20180144014A1 EFFICIENT DATABASE MULTI-VERSION CONCURRENCY CONTROL Public/Granted day:2018-05-24
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