发明授权
US08825601B2 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
- 专利标题: Logical data backup and rollback using incremental capture in a distributed database
- 专利标题(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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申请号: US12697302申请日: 2010-02-01
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公开(公告)号: US08825601B2公开(公告)日: 2014-09-02
- 发明人: Hanh Huynh Huu , Zhongwei Wu , Oliver N. Seeliger , Shankar Pal , Christian Rober , Bruno H. M. Denuit , Lev Novik , Nigel R. Ellis , Tomas Talius
- 申请人: Hanh Huynh Huu , Zhongwei Wu , Oliver N. Seeliger , Shankar Pal , Christian Rober , Bruno H. M. Denuit , Lev Novik , Nigel R. Ellis , Tomas Talius
- 申请人地址: US WA Redmond
- 专利权人: Microsoft Corporation
- 当前专利权人: Microsoft Corporation
- 当前专利权人地址: US WA Redmond
- 代理商 Nicholas Chen; Kate Drakos; Micky Minhas
- 主分类号: G06F7/00
- IPC分类号: G06F7/00 ; G06F17/00 ; G06F17/30
摘要:
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.