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MCQ

Q.

Relational calculus is a

A

Procedural language.

B

Non- Procedural language.

C

Data definition language.

D

High level language.

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MCQ

1.

The_____ operation allows the combining of two relations by merging pairs of tuples, one from each relation, into a single tuple.

A

Select

B

Join

C

Union

D

Intersection

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MCQ

2.

The subset of a super key is a candidate key under what condition?

A

No proper subset is a super key

B

All subsets are super keys

C

Subset is a super key

D

Each subset is a super key

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3.

A query in the tuple relational calculus is expressed as:

A

{t | P() | t}

B

{P(t) | t }

C

{t | P(t)}

D

All of the mentioned

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4.

The intersection operator is used to get the _____ tuples.

A

Different

B

Common

C

All

D

Repeating

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5.

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

A

?

B

=

C

?

D

All of the mentioned

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