SQL Server Numeric Data Types – Beginner Level Quiz

SQL Server Numeric Data Types (Beginner Level)

This quiz tests your knowledge of SQL Server's numeric data types. You'll encounter questions covering the differences between integer types, floating-point types, and other basic numeric data types used in SQL Server.

1 / 20

What is the default precision and scale for the DECIMAL data type if not specified?

Precision 10, Scale 0

Precision 18, Scale 2

Precision 38, Scale 0

Precision 10, Scale 2

2 / 20

What is the difference between FLOAT and REAL data types?

FLOAT is for integers, REAL is for floating-point numbers

REAL uses less storage than FLOAT

REAL can store larger values than FLOAT

There is no difference

3 / 20

Which numeric data type would you use if you need to store very large numbers with decimal precision?

DECIMAL

INT

SMALLINT

TINYINT

4 / 20

The DECIMAL data type requires you to specify both precision and scale when defining a column in SQL Server.

True

False

5 / 20

Which of the following data types allows you to store numbers with floating-point precision?

BIGINT

FLOAT

SMALLINT

BIT

6 / 20

Which SQL Server data type would be most suitable for a field where only 0 or 1 is stored?

BIT

TINYINT

SMALLINT

DECIMAL

7 / 20

The BIT data type in SQL Server can store values other than 0 and 1.

True

False

8 / 20

You can store negative numbers in the SMALLINT data type in SQL Server.

True

False

9 / 20

Which data type would you use to store a small integer value ranging from 0 to 255 in SQL Server?

INT

SMALLINT

TINYINT

BIGINT

10 / 20

Which SQL Server numeric data type is ideal for storing whole numbers that require larger ranges up to approximately 2 billion?

BIGINT

SMALLINT

INT

DECIMAL

11 / 20

The NUMERIC data type is identical to DECIMAL in terms of precision and scale.

True

False

12 / 20

Which of the following numeric data types has the highest precision for fractional values?

DECIMAL

FLOAT

INT

TINYINT

13 / 20

The INT data type takes 2 bytes of storage in SQL Server.

True

False

14 / 20

The TINYINT data type can store both positive and negative numbers.

True

False

15 / 20

What is the size (in bytes) of an INT data type in SQL Server?

1 byte

2 bytes

4 bytes

8 bytes

16 / 20

The REAL data type uses less storage space than the FLOAT data type.

True

False

17 / 20

Which data type would be most suitable for financial data, such as currency, to avoid rounding errors?

FLOAT

MONEY

BIGINT

DECIMAL

18 / 20

The TINYINT data type is suitable for storing which of the following values?

-1

255

32768

9,223,372,036

19 / 20

How much storage does the TINYINT data type require?

1 byte

2 bytes

4 bytes

8 bytes

20 / 20

What is the range of values for the REAL data type in SQL Server?

-32,768 to 32,767

-3.40E+38 to 3.40E+38

-1.79E+308 to 1.79E+308

-3.40E+38 to 3.40E+38 (with less precision than FLOAT)

Your score is

The average score is 42%

SQL Server offers a variety of numerical data. These types range from integers to floating-point numbers, each serving different purposes based on storage size and precision. Understanding the correct usage of these data types helps optimize database performance and ensure accurate data storage.