Invention Application
US20110191299A1 LOGICAL DATA BACKUP AND ROLLBACK USING INCREMENTAL CAPTURE IN A DISTRIBUTED DATABASE
有权
在分布式数据库中使用增量捕获的逻辑数据备份和回滚
- Patent Title: LOGICAL DATA BACKUP AND ROLLBACK USING INCREMENTAL CAPTURE IN A DISTRIBUTED DATABASE
- Patent Title (中): 在分布式数据库中使用增量捕获的逻辑数据备份和回滚
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Application No.: US12697302Application Date: 2010-02-01
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Publication No.: US20110191299A1Publication Date: 2011-08-04
- Inventor: Hanh Huynh Huu , Zhongwei Wu , Oliver N. Seeliger , Shankar Pal , Christian Rober , Bruno H.M. Denuit , Lev Novik , Nigel R. Ellis , Tomas Talius
- Applicant: Hanh Huynh Huu , Zhongwei Wu , Oliver N. Seeliger , Shankar Pal , Christian Rober , Bruno H.M. Denuit , Lev Novik , Nigel R. Ellis , Tomas Talius
- Applicant Address: US WA Redmond
- Assignee: Microsoft Corporation
- Current Assignee: Microsoft Corporation
- Current Assignee Address: US WA Redmond
- Main IPC: G06F17/30
- IPC: G06F17/30

Abstract:
Architecture that eliminates the need for on-disk full backups of data retaining only changes that have occurred, in a separate table. Thus, the architecture provides for incremental recovery of incremental changes in a relational database (e.g., SQL). The architecture provides improved recovery time and recovery point objectives. By using the incremental capture of changed data (e.g., in an XML format), the capability is provided to capture schema changes, query the incremental change data and efficiently restore user data to an earlier point-in-time state. Changes (e.g., insert, update and delete operations) are tracked (e.g., continuously) by a set of triggers and the incrementally captured changed rows are inserted in a data capture table (a differential change “delta” table) in a human-readable format (e.g., XML). Rollback is also provided.
Public/Granted literature
- US08825601B2 Logical data backup and rollback using incremental capture in a distributed database Public/Granted day:2014-09-02
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