Welcome to the SQL MCQs Page

Dive deep into the fascinating world of SQL with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of SQL, a crucial aspect of DBMS. In this section, you will encounter a diverse range of MCQs that cover various aspects of SQL, 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 SQL. 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 SQL. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

SQL MCQs | Page 6 of 38

Explore more Topics under DBMS

01

DBMS Basics

02

Data Models

03

The Entity Relationship Approach

04

Relational Databases

05

Data Storage and Querying

06

Relational Algebra

07

Normalization

08

Storage and File Structures

09

Indexing and Hashing

10

Transactions

11

Concurrency Control

12

Recovery System

13

Distributed Databases

14

Data Warehousing and Data Mining

15

RDBMS

16

Advanced SQL

17

SQL Queries,Constraints and Triggers

Q51.

What is not an advantage of stored procedures?

Greater security

SQL can be optimized

Code sharing

Increased network traffic

Discuss

Answer: (d).Increased network traffic

Q52.

A reason for using an SQL view to hide columns is:

to simplify a result only.

to prevent the display of sensitive data only.

to accomplish both of the above.

None of the above are reasons for using an SQL view.

Discuss

Answer: (c).to accomplish both of the above.

Q53.

Which of the following is an SQL trigger supported by Oracle?

BEFORE

INSTEAD OF

AFTER

All of the above.

Discuss

Answer: (d).All of the above.

Q54.

The SQL ALTER statement can be used to:

change the table structure.

change the table data.

add rows to the table.

delete rows from the table.

Discuss

Answer: (a).change the table structure.

Q55.

What SQL structure is used to limit column values of a table?

The LIMIT constraint

The CHECK constraint

The VALUE constraint

None of the above is correct.

Discuss

Answer: (b).The CHECK constraint

Q56.

Which is NOT one of the most common types of SQL CHECK constraints?

System date

Range checks

Lists of values

Comparing one column value to another within the same table

Discuss

Answer: (a).System date

Q57.

What is an advantage of placing computations in SQL views?

To save users from having to write an expression.

To ensure that the results are consistent.

To accomplish both of the above.

None of the above is correct - computations cannot be placed in a view.

Discuss

Answer: (c).To accomplish both of the above.

Q58.

Views constructed from SQL SELECT statements that conform to the SQL-92 standard may not contain:

GROUP BY

WHERE

ORDER BY

FROM

Discuss

Answer: (c).ORDER BY

Q59.

‘AS’ clause is used in SQL for

Selection operation

Rename operation

Join operation

Projection operation

Discuss

Answer: (b).Rename operation

Q60.

The language which has recently become the defacto standard for interfacing application programs with relational database system is

Oracle

SQL

DBase

4GL

Discuss

Answer: (b).SQL

Page 6 of 38

Welcome to the SQL MCQs Page

SQL MCQs | Page 6 of 38

Explore more Topics under DBMS

DBMS Basics

Data Models

The Entity Relationship Approach

Relational Databases

Data Storage and Querying

Relational Algebra

Normalization

Storage and File Structures

Indexing and Hashing

Transactions

Concurrency Control

Recovery System

Distributed Databases

Data Warehousing and Data Mining

RDBMS

Advanced SQL

SQL Queries,Constraints and Triggers

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