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Welcome to the Relational Algebra MCQs Page

Dive deep into the fascinating world of Relational Algebra with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Relational Algebra, a crucial aspect of DBMS. In this section, you will encounter a diverse range of MCQs that cover various aspects of Relational Algebra, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within DBMS.

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Check out the MCQs below to embark on an enriching journey through Relational Algebra. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of DBMS.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of Relational Algebra. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Relational Algebra MCQs | Page 9 of 11

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Q81.
The SELECT operation is performed on

a.

tuples of relation

b.

attribute of table

c.

entity of DBMS

d.

columns of table

Discuss
Answer: (a).tuples of relation
Q82.
The selection condition of SELECT operator is considered as

a.

column expression

b.

row expression

c.

string expression

d.

Boolean expression

Discuss
Answer: (d).Boolean expression
Q83.
The type of JOIN operation through which one can keep all tuples in relations without considering corresponding tuples in any other relation is classified as

a.

stem join

b.

leaf join

c.

outer join

d.

inner join

Discuss
Answer: (c).outer join
Q84.
The process in which tuple is created by having combined attributes from two relations is classified as

a.

Cartesian compatibility

b.

Cartesian multiples

c.

Cartesian product

d.

Cartesian ordinate

Discuss
Answer: (c).Cartesian product
Q85.
Consider two tuples B and C, the operation whose result includes tuples that are included in both relations or either in B or C is classified as

a.

square of relation B and C

b.

union of relation B and C

c.

intersection of relation B and C

d.

difference of relation B and C

Discuss
Answer: (b).union of relation B and C
Q86.
In relational operations, the SELECT operation is written as

a.

ฮฃ < selection condition > ( S )

b.

ฯƒ < selection condition > ( R )

c.

ฯ‰ < selection condition > ( R )

d.

ฮฉ < selection condition > ( R )

Discuss
Answer: (b).ฯƒ < selection condition > ( R )
Q87.
The nodes which represents queries in the relations are classified as

a.

relation nodes

b.

query nodes

c.

truth nodes

d.

local nodes

Discuss
Answer: (a).relation nodes
Q88.
In unary relational operations, the symbol Ïย€ is used to represent the operation called

a.

OR operation

b.

AND operation

c.

TABLE operation

d.

PROJECT operation

Discuss
Answer: (d).PROJECT operation
Q89.
The relational calculus is classified as

a.

high level language

b.

low level language

c.

query specifying language

d.

query identifying language

Discuss
Answer: (a).high level language
Q90.
The kind of operation which is used to extend the traditional projection operation by including projection attributes in projection list is called

a.

relational projection

b.

generalized projection

c.

analyzed projection

d.

multiple projection

Discuss
Answer: (b).generalized projection
Page 9 of 11

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