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Concurrency Control – Traditional Approaches

  • Reference work entry
Encyclopedia of Database Systems

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Synonyms

Concurrency control; Transaction execution; Scheduling; Page locking; Two-phase-locking

Definition

The core requirement on a transactional server is to provide the ACID properties for transactions, which requires that the server includes a concurrency control component as well as a recovery component. Concurrency control essentially guarantees the isolation properties of transactions, by giving each transaction the impression that it operates alone on the underlying database and, more technically, by providing serializable executions. To achieve serializability, a number of algorithms have been proposed. Traditional approaches focus on the read-write model of transactions and devise numerous ways for correctly scheduling read-write transactions. Most practical solutions employ a variant of the two-phase locking protocol.

Key Points

Concurrency control for transactions is done by the transaction manager of a database system and within that component by a scheduler. The...

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Recommended Reading

  1. Bernstein P.A., Hadzilacos V., and Goodman N. Concurrency Control and Recovery in Database Systems. Addison-Wesley, Reading, MA, 1987.

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  2. Bernstein P.A. and Newcomer E. Principles of Transaction Processing for the Systems Professional. Morgan Kaufmann, San Francisco, CA, 1997.

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  3. Claybrook B. OLTP – Online Transaction Processing Systems. Wiley, New York, 1992.

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  4. Gray J. and Reuter A. Transaction Processing: Concepts and Techniques. Morgan Kaufmann, San Francisco, CA, 1993.

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  5. Papadimitriou C.H. The Theory of Database Concurrency Control. Computer Science, Rockville, MD, 1986.

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  6. Weikum G. and Vossen G. Transactional Information Systems – Theory, Algorithms, and the Practice of Concurrency Control and Recovery. Morgan Kaufmann, San Francisco, CA, 2002.

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Author information

Authors and Affiliations

  1. University of Münster, Münster, Germany

    Gottfried Vossen

Authors
  1. Gottfried Vossen
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Editor information

Editors and Affiliations

  1. College of Computing, Georgia Institute of Technology, 266 Ferst Drive, 30332-0765, Atlanta, GA, USA

    LING LIU (Professor) (Professor)

  2. Database Research Group David R. Cheriton School of Computer Science, University of Waterloo, 200 University Avenue West, N2L 3G1, Waterloo, ON, Canada

    M. TAMER ÖZSU (Professor and Director, University Research Chair) (Professor and Director, University Research Chair)

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© 2009 Springer Science+Business Media, LLC

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Vossen, G. (2009). Concurrency Control – Traditional Approaches. In: LIU, L., ÖZSU, M.T. (eds) Encyclopedia of Database Systems. Springer, Boston, MA. https://doi.org/10.1007/978-0-387-39940-9_76

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