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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 3 of 11

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Q21.
Relational algebra is :

a.

Data Definition Language

b.

Meta Language

c.

Procedural query language

d.

Non procedural language

Discuss
Answer: (c).Procedural query language
Q22.
Relational calculus is a

a.

Procedural language

b.

Non- Procedural language

c.

Data definition language

d.

High level language

Discuss
Answer: (b).Non- Procedural language
Q23.
Cartesian product in relational algebra is

a.

a Unary operator

b.

a Binary operator

c.

a Ternary operator

d.

not defined

Discuss
Answer: (b).a Binary operator
Q24.
In tuple relational calculus P1 โ†’ P2 is equivalent to

a.

¬P1 โˆจ P2

b.

¬P1 โˆจ P2

c.

P1 โˆง P2

d.

P1 โˆง ¬P2

Discuss
Answer: (b).¬P1 โˆจ P2
Q25.
Relational Algebra is

a.

Data Definition Language

b.

Meta Language

c.

Procedural query Language

d.

None of the above

Discuss
Answer: (c).Procedural query Language
Q26.
_______ produces the relation that has attributes of R1 and R2.

a.

Cartesian product

b.

Difference

c.

Intersection

d.

Product

Discuss
Answer: (a).Cartesian product
Q27.
Which of the following operation is used if we are interested in only certain columns of a table?

a.

PROJECTION

b.

SELECTION

c.

UNION

d.

JOIN

Discuss
Answer: (a).PROJECTION
Q28.
Which of the following operations need the participating relations to be union compatible?

a.

UNION

b.

INTERSECTION

c.

DIFFERENCE

d.

All of the above

Discuss
Answer: (d).All of the above
Q29.
The result of the UNION operation between R1 and R2 is a relation that includes

a.

all the tuples of R1

b.

all the tuples of R2

c.

all the tuples of R1 and R2

d.

all the tuples of R1 and R2 which have common columns

Discuss
Answer: (d).all the tuples of R1 and R2 which have common columns
Q30.
Using Relational Algebra the query that finds customers, who have a balance of over 1000 is

a.

ฮ  Customer_name(ฯƒ balance >1000(Deposit))

b.

ฯƒ Customer_name(ฮ  balance >1000(Deposit))

c.

ฮ  Customer_name(ฯƒ balance >1000(Borrow))

d.

ฯƒ Customer_name(ฮ  balance >1000(Borrow))

Discuss
Answer: (a).ฮ  Customer_name(ฯƒ balance >1000(Deposit))
Page 3 of 11

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