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Part of the book series: EATCS Monographs on Theoretical Computer Science ((EATCS,volume 17))

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Abstract

In Example 3.11 and Theorem 3.7 we saw that the presence of fds can give rise to lossless decompositions of a given relation scheme. We summarize the main advantages of decomposing a relation scheme:

  • smaller relations are easier to understand;

  • independent information should not be stored in one relation;

  • it is often possible to eliminate redundancy;

  • in distributed databases different components can be located in different sites.

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© 1989 Springer-Verlag Berlin Heidelberg

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Paredaens, J., De Bra, P., Gyssens, M., Van Gucht, D. (1989). Vertical Decompositions. In: The Structure of the Relational Database Model. EATCS Monographs on Theoretical Computer Science, vol 17. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-69956-6_4

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  • DOI: https://doi.org/10.1007/978-3-642-69956-6_4

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-69958-0

  • Online ISBN: 978-3-642-69956-6

  • eBook Packages: Springer Book Archive

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