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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.

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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 29 of 38

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Q281.
The data type in SQL which includes various size integers and floating point numbers are classified as

a.

query data type

b.

numeric data types

c.

binary data types

d.

formatted data types

Discuss
Answer: (b).numeric data types
Q282.
In the statement DECIMAL (I, j) to specify numeric data type, the digits after the decimal point are called

a.

the precision

b.

the scale

c.

the string

d.

the numeric strip

Discuss
Answer: (b).the scale
Q283.
The command in SQL which is used when any of the schema is no longer needed in relation is classified as

a.

DROP SCHEMA command

b.

PICK SCHEMA command

c.

DELETE SCHEMA command

d.

RESTRICT SCHEMA command

Discuss
Answer: (a).DROP SCHEMA command
Q284.
In the declaration statement DECIMAL (I, j), the 'I' is classified as

a.

the precision

b.

the scale

c.

the string

d.

the numeric strip

Discuss
Answer: (a).the precision
Q285.
In fixed length character string CHAR(n), the 'n' represents

a.

number of characters

b.

maximum number of characters

c.

number of rows

d.

number of columns

Discuss
Answer: (a).number of characters
Q286.
The relations that are declared in SQL through CREATE VIEW statements are classified as

a.

binary relations

b.

ternary relations

c.

logic relations

d.

virtual relations

Discuss
Answer: (d).virtual relations
Q287.
In SQL, the identifier which are used to indicate the user of schema is classified as

a.

high level identifiers

b.

low level identifiers

c.

authorization identifier

d.

query identifier

Discuss
Answer: (c).authorization identifier
Q288.
If the explicit value of attributes is not provided in SQL then the value included in new tuple in such situation is called

a.

sampled statement

b.

decimal value

c.

notation statement

d.

default value

Discuss
Answer: (d).default value
Q289.
The command used in SQL which deletes the table definition as well as all the records available in the table is called

a.

DELETE command

b.

DROP TABLE command

c.

PRIMARY KEY command

d.

SECONDARY KEY command

Discuss
Answer: (b).DROP TABLE command
Q290.
The command used in SQL to specify new relation, its initial constraints and attributes is classified as

a.

CREATE TABLE

b.

CREATE IDENTIFIER

c.

CREATE CATALOG

d.

CREATE SCHEMAS

Discuss
Answer: (a).CREATE TABLE
Page 29 of 38

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