Which database object does not physically exist, Database Management System

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Which database object does not physically exist?

A view database object does not physically exist.

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What is the used of specifying alias? Specifying alias: is used to rename column or attribute in a table.

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What are the two types of indices? The two types of indices are:- A) Dense index B) Sparse index

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Illustrate the diagram - association as a cache, Association as a cache ...

Association as a cache This association must be updated when any new element is added to it, but testing for overlap using association is more efficient. Figure:

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in case of functional dependencies how we get the higher normal form.

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What is the most significant feature that does not directly map into programming language structures? Why? Association, since there are complex types of association, like as qu

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There are a number of possible solutions to the open ended brief. One of the simple ones is shown here without the PKs and FKs. It is important to think of how a number of tasks

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