Transaction recovery - PowerPoint PPT Presentation

Data recovery

Data recovery. Recovery - introduction. recovery restoring a system, after an error or failure, to a state that was previously known as correct have you dealt with “recovery” (in a form or another …)? principle: redundancy for databases: redundancy at the physical, not logical, level

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472 views • 28 slides

10.4 Concurrency Control with Time Stamping Methods

10.4 Concurrency Control with Time Stamping Methods. Assigns global unique time stamp to each transaction Produces explicit order in which transactions are submitted to DBMS Uniqueness Ensures that no equal time stamp values can exist Monotonicity

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453 views • 14 slides

Transaction Processing Concepts

Transaction Processing Concepts. Chapter 17.1-17.3. Users and DB Programs. End users don't see the DB directly are only vaguely aware of its design may be acutely aware of part of its contents End users interact with DB programs

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254 views • 11 slides

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