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Explain trivial dependency? Functional dependency of the form α ->β. is trivial if α C β. Trivial functional dependencies are satisfied by all the relations.
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How to reduce data redundency
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Removing a Synonym: DROP SYNONYM D30;
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A set of possible data values is called? A set of possible data values is called as domain.
What is NULL? Simply NULL means not in value.
What are the advantages of having an index structure? Ans: The index structures commonly provide secondary access paths, which offer alternative ways of accessing the reco
Write short notes on tuple relational calculus. The tuple relational calculation is anon procedural query language. It defines the desired information without giving a particul
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