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ARIES: Logging and Recovery

719 views • 47 slides

CS 540 Database Management Systems

CS 540 Database Management Systems. Logging and Recovery: ARIES. The ACID Properties of Transactions. Atomicity: Either all actions are done, or none Consistency: DB satisfies all the consistency constraints Transactions are expected to preserve consistency Is olation :

419 views • 29 slides

Crash Recovery

Crash Recovery. Review: The ACID properties. A tomicity: All actions in the Xact happen, or none happen. C onsistency: If each Xact is consistent, and the DB starts consistent, it ends up consistent. I solation: Execution of one Xact is isolated from that of other Xacts.

388 views • 27 slides