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Q.

The result which operation contains all pairs of tuples from the two relations, regardless of whether their attribute values match.

A

Join

B

Cartesian product

C

Intersection

D

Set difference

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Relational Algebra is

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Data Definition Language .

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Meta Language

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Procedural query Language

D

None of the above

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Which of the following is the comparison operator in tuple relational calculus

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?

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=

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Which is a join condition contains an equality operator:

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A _________ integrity constraint requires that the values appearing in specified attributes of any tuple in the referencing relation also appear in specified attributes of at least one tuple in the referenced relation.

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The ______ is the one in which the primary key of one relation is used as a normal attribute in another relation.

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