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MCQ

Q.

Which one of the following is a procedural language?

A

Domain relational calculus

B

Tuple relational calculus

C

Relational algebra

D

Query language

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MCQ

1.

Consider attributes ID, CITY and NAME. Which one of this can be considered as a super key?

A

NAME

B

ID

C

CITY

D

CITY, ID

Discussion

MCQ

2.

The ___________ operation, denoted by -, allows us to find tuples that are in one relation but are not in another.

A

Union

B

Set difference

C

Difference

D

Intersection

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MCQ

3.

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.

A

Referential

B

Referencing

C

Specific

D

Primary

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4.

Which of the following is not outer join?

A

Left outer join

B

Right outer join

C

Full outer join

D

All of the mentioned

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5.

Relational Algebra is

A

Data Definition Language .

B

Meta Language

C

Procedural query Language

D

None of the above

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