Invention Grant
- Patent Title: Database corruption recovery systems and methods
- Patent Title (中): 数据库损坏恢复系统和方法
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Application No.: US11125806Application Date: 2005-05-10
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Publication No.: US08386440B2Publication Date: 2013-02-26
- Inventor: David B. Lomet , Roger S. Barga
- Applicant: David B. Lomet , Roger S. Barga
- Applicant Address: US WA Redmond
- Assignee: Microsoft Corporation
- Current Assignee: Microsoft Corporation
- Current Assignee Address: US WA Redmond
- Agency: Lee & Hayes, PLLC
- Main IPC: G06F7/00
- IPC: G06F7/00 ; G06F13/00 ; G06F11/00

Abstract:
The subject invention pertains to data store corruption recovery. More specifically, the invention concerns systems and methods for identifying corrupt data in a manner that prevents de-committing or removal of valid or consistent transactions from a database. This can be accomplished at least in part by logging the identities of data items that a transaction reads. Furthermore, the subject invention provides for employment of a multi-version (or transaction-time) database to reduce significantly reduce any down time or database unavailability caused by a corrupt transaction and associated corrupt data items. Accordingly, no backups need to be installed and only updates by the original corrupt transaction and transactions that read corrupt data need to be de-committed or removed.
Public/Granted literature
- US20060259518A1 Database corruption recovery systems and methods Public/Granted day:2006-11-16
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