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Desirable Properties Of Decomposition
Decomposition is a process of dividing a relation into its projections that will not be disjoint. Please remind the Relational projection operator and keep in mind no duplicate tuples are allowed in a projection.
Desirable properties of decomposition are given below:
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Vertical Fragmentation- Vertical fragmentation groups together only those attributes in a relation that are used jointly by various important transactions. A vertical fragment is d
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Replication : It is definite as a copy of a relation. Every replica is stored at a dissimilar site. The alternative to replication is to store only single copy of a relation which
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It defines that the tuple in one relation that refers to another relation must refer to an existing tuple in that relation. This constraint is states on two relations (not essentia
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