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Distributed Database Systems, 1st Edition by Chhanda Ray
book

Distributed Database Systems, 1st Edition by Chhanda Ray

by Chhanda Ray
May 2024
Intermediate to advanced content levelIntermediate to advanced
325 pages
12h 2m
English
Pearson India
Content preview from Distributed Database Systems, 1st Edition by Chhanda Ray
Overview of Relational DBMS
5
normal form or not. Initially, three normal forms were introduced, namely, 1NF (First normal form),
2NF (Second normal form) and 3NF (Third normal form). In 1974, a stronger version of 3NF called
Boyce–Codd normal form (BCNF) was developed. All these normal forms are based on functional
dependencies among the attributes in a relation. Later, higher normal forms such as 4NF (Fourth
normal form) and 5NF (Fifth normal form) were introduced. 4NF is based on multi-valued depen-
dencies, while 5NF is based on join dependencies.
The process of normalization is a formal method in which a single relation is decomposed into ...
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Publisher Resources

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