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CMPT 401 Summer 2007 CMPT 401 Summer 2007

CMPT 401 Summer 2007 - PowerPoint Presentation

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Uploaded On 2015-11-19

CMPT 401 Summer 2007 - PPT Presentation

Dr Alexandra Fedorova Lecture X Transactions Transactions A transaction is a collection of actions logically belonging together To the outside world a transaction must appear as a single indivisible operation ID: 198760

log transactions database transaction transactions log transaction database recovery record data undo locks update records updates redo abort disk

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