Show that it is possible to ensure that a dependency-preserving decomposition into 3NF is a loss less-join

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Show that it is possible to ensure that a dependency-preserving decomposition into 3NF is a loss less-join decomposition by guaranteeing that at least one schema contains a candidate key for the schema being decomposed.

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Database System Concepts

ISBN: 978-0072554816

4th Edition

Authors: Henry F. Korth, S. Sudarshan

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Question Posted: Jan 28, 2011 05:54 AM

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Show that it is possible to ensure that a dependency-preserving decomposition into 3NF is a loss less-join

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Let F be a set of functional dependencies that hold on a schema R Let R1 R2 Rn be a dependencypreser...View the full answer

Database System Concepts

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