create table, Database Management System

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What are the advantages of creating a table from existing table?

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Explain Composite attribute in SQL ? Composite attribute: A composite attribute has many components, each of that is atomic or composite.

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The insertion of a tuple in the aim of reference does not cause any destruction. Though, insertion of a tuple in the relation in which, we has the foreign key, for instance, in ASS

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Can a domain, assigned to a data element be changed? Yes.  We can do so by just overwriting the entry in the field domain.

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Explain weak and strong entity type ? Weak and Strong entity type: An entity set which does not have a primary key is referred to as a weak entity set. The existence of a wea

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Fragmentation: It is definite as partitioning of a relation into various fragments.Every fragment can be stored at a dissimilar site.

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What is a database graph? The partial ordering implies that the set D may now be viewed as a directed acyclic graph, known as a database graph.

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