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Problem :
(b) A deductive database system is essentially the outcome of applying mathematics logic to database management, where logic is used for both data representation and data manipulation.
(i) Explain the relationships and the differences between a deductive databases and relational databases. (ii) In the context of deductive databases, explain the following concepts:
♦ Intentional database. ♦ Extensional database. ♦ Recursive query.
A student entity type has the following attributes,name..
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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 re
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