Conflict equivalence - PowerPoint PPT Presentation

Implementing Isolation

Implementing Isolation. Chapter 20/23. The Issue. Maintaining database correctness when: Many transactions are accessing the database concurrently Assuming each transaction maintains database correctness when executed in isolation. Isolation. Serial execution:

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CS162 Section

CS162 Section. Lecture 10 S lides based from Lecture and www.news.cs.nyu.edu /~jinyang/fa08 /. What is conflict equivalence?. Conflict Serializability. T1:R(A),W(A), R(B),W(B) T2: R(A),W(A), R(B),W(B) . T1:R(A),W(A), R(B), W(B)

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Transaction Processing: Concurrency and Serializability

Transaction Processing: Concurrency and Serializability. 10/4/05. Interleave transactions to improve concurrency; increasing concurrency can increase throughput (performance). Some interleaved transactions will never violate isolation because they act on different data.

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350 views • 28 slides

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