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 10 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

Q91.

ON UPDATE CASCADE ensures which of the following?

Normalization

Data Integrity

Materialized Views

All of the above.

Discuss

Answer: (b).Data Integrity

Q92.

You can add a row using SQL in a database with which of the following?

ADD

CREATE

INSERT

MAKE

Discuss

Answer: (c).INSERT

Q93.

The wildcard in a SELECT statement is which of the following?

∗

Discuss

Answer: (c).∗

Q94.

The wildcard in a WHERE clause is useful when?

An exact match is necessary in a SELECT statement.

An exact match is not possible in a SELECT statement.

An exact match is necessary in a CREATE statement.

An exact match is not possible in a CREATE statement.

Discuss

Answer: (b).An exact match is not possible in a SELECT statement.

Q95.

The HAVING clause does which of the following?

Acts like a WHERE clause but is used for groups rather than rows.

Acts like a WHERE clause but is used for rows rather than columns.

Acts like a WHERE clause but is used for columns rather than groups.

Acts EXACTLY like a WHERE clause.

Discuss

Answer: (a).Acts like a WHERE clause but is used for groups rather than rows.

Q96.

What type of join is needed when you wish to return rows that do have matching values?

Equi-join

Natural join

Outer join

All of the above.

Discuss

Answer: (d).All of the above.

Q97.

Which of the following statements is true concerning routines and triggers?

Both consist of procedural code.

Both have to be called to operate.

Both run automatically.

Both are stored in the database.

Discuss

Answer: (a).Both consist of procedural code.

Q98.

The following SQL is which type of join:
SELECT CUSTOMER_T. CUSTOMER_ID, ORDER_T. CUSTOMER_ID, NAME, ORDER_ID
FROM CUSTOMER_T,ORDER_T
WHERE CUSTOMER_T. CUSTOMER_ID = ORDER_T. CUSTOMER_ID

Equi-join

Natural join

Outer join

Cartesian join

Discuss

Answer: (a).Equi-join

Q99.

Embedded SQL is which of the following?

Hard-coded SQL statements in a program language such as Java.

The process of making an application capable of generating specific SQL code on the fly.

Hard-coded SQL statements in a procedure.

Hard-coded SQL statements in a trigger.

Discuss

Answer: (a).Hard-coded SQL statements in a program language such as Java.

Q100.

The following SQL is which type of join:
SELECT CUSTOMER_T. CUSTOMER_ID, ORDER_T. CUSTOMER_ID, NAME, ORDER_ID
FROM CUSTOMER_T,ORDER_T ;

Equi-join

Natural join

Outer join

Cartesian join

Discuss

Answer: (d).Cartesian join

Page 10 of 38

Welcome to the SQL MCQs Page

SQL MCQs | Page 10 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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