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.

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 :

Data Definition Language

Meta Language

Procedural query language

Non procedural language

Discuss

Answer: (c).Procedural query language

Q22.

Relational calculus is a

Procedural language

Non- Procedural language

Data definition language

High level language

Discuss

Answer: (b).Non- Procedural language

Q23.

Cartesian product in relational algebra is

a Unary operator

a Binary operator

a Ternary operator

not defined

Discuss

Answer: (b).a Binary operator

Q24.

In tuple relational calculus P1 → P2 is equivalent to

¬P1 ∨ P2

P1 ∧ P2

P1 ∧ ¬P2

Discuss

Answer: (b).¬P1 ∨ P2

Q25.

Relational Algebra is

Data Definition Language

Meta Language

Procedural query Language

None of the above

Discuss

Answer: (c).Procedural query Language

Q26.

_______ produces the relation that has attributes of R1 and R2.

Cartesian product

Difference

Intersection

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?

PROJECTION

SELECTION

UNION

JOIN

Discuss

Answer: (a).PROJECTION

Q28.

Which of the following operations need the participating relations to be union compatible?

UNION

INTERSECTION

DIFFERENCE

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

all the tuples of R1

all the tuples of R2

all the tuples of R1 and R2

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

Π Customer_name(σ balance >1000(Deposit))

σ Customer_name(Π balance >1000(Deposit))

Π Customer_name(σ balance >1000(Borrow))

σ Customer_name(Π balance >1000(Borrow))

Discuss

Answer: (a).Π Customer_name(σ balance >1000(Deposit))

Page 3 of 11

Welcome to the Relational Algebra MCQs Page

Relational Algebra MCQs | Page 3 of 11

Explore more Topics under DBMS

DBMS Basics

Data Models

The Entity Relationship Approach

Relational Databases

Data Storage and Querying

Normalization

Storage and File Structures

Indexing and Hashing

Transactions

Concurrency Control

Recovery System

Distributed Databases

SQL

Data Warehousing and Data Mining

RDBMS

Advanced SQL

SQL Queries,Constraints and Triggers

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