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Explain Superkey
Ans: A superkey is described in the relational model of database organization like a set of attributes of a relation variable for which it holds that in all relations assigned to that variable there are no two different tuples (rows) that have similar values for the attributes in this set. Consistently a superkey can as well be defined as a set of attributes of a relvar upon that all attributes of the relvar are functionally dependent.
Define various ways in which SELECT statement can be used for record selection Technology? SELECT gives you control over a number of aspects for record retrieval: 1) Which
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what benefit can a company gain by managing its own infrasture and services
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