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Web Views

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Encyclopedia of Database Systems

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Synonyms

Web Views; HTML fragment

Definition

Web Views are web pages or web page fragments that are automatically created from base data, which are typically stored in a database management system (DBMS).

Key Points

Although caching of HTML pages (and fragments) has been proposed in the literature as early as the mid-1990s, the term Web View was introduced in 1999 [2] to denote that these fragments are generated through queries made to a back-end DBMS.

The concept of a Web View facilitates the materialization of dynamically generated HTML fragments outside the DBMS. The main advantage of materializing Web Views (outside the DBMS, e.g., at the web server) is that the web server need not query the DBMS for every user request, thus greatly improving query response time for the user [3]. On the other hand, for the quality of the data returned to the user to be high, the system must keep materialized Web Views fresh (in the background). This essentially decouples the processing of queries...

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Recommended Reading

  1. Gupta H. and Mumick I.S. Selection of views to materialize under a maintenance cost constraint. In Proc. 7th Int. Conf. on Database Theory, 1999, pp. 453–470.

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  2. Labrinidis A. and Roussopoulos N. Alexandros On the materialization of Web views. In Proc. ACM SIGMOD Workshop on The Web and Databases, 1999, pp. 79–84.

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  3. Labrinidis A. and Roussopoulo N. Web View materialization. In Proc. ACM SIGMOD Int. Conf. on Management of Data, 2000, pp. 367–378.

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  4. Labrinidis A. and Roussopoulos N. Update propagation strategies for improving the quality of data on the Web. In Proc. 27th Int. Conf. on Very Large Data Bases, 2001, pp. 391–400.

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  5. Labrinidis A. and Roussopoulos N. Balancing performance and data freshness in Web database servers. In Proc. 29th Int. Conf. on Very Large Data Bases, 2003, pp. 393–404.

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  6. Labrinidis A. and Roussopoulos N. Exploring the tradeoff between performance and data freshness in database-driven Web servers. VLDB J., 13(3):240–255, 2004.

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Author information

Authors and Affiliations

  1. Department of Computer Science, University of Pittsburgh, Pittsburgh, PA, USA

    Alexandros Labrinidis

Authors
  1. Alexandros Labrinidis
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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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Labrinidis, A. (2009). Web Views. In: LIU, L., ÖZSU, M.T. (eds) Encyclopedia of Database Systems. Springer, Boston, MA. https://doi.org/10.1007/978-0-387-39940-9_853

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