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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.
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Question: The following relational database schema corresponds to a part of a database used by the Registry Department of a university. DEPARTMENT (d#, d-name, head-of-dept)
In a relation, tuples are not inserted in any definite order. Ordering of tuples is not defined as a part of a relation definition. Though, records may be structured later accordin
What is inheritance? Define it in detail? Inheritance Inheritance can be at the levels of types, or at the level of tables we first consider inheritance of types, then i
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Name the various privileges in SQL? A) Delete B) Select C) Insert D) Update
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