[Edit]

MS SQL Server - ROUND() function example

1 contributors

2 contributions

0 discussions

0 points

Created by:

Inferio

328

In this article, we would like to show you how to use ROUND() function in MS SQL Server.

Quick solution:

xxxxxxxxxx
 
SELECT ROUND(number, decimals);

Practical example

Edit

Simple example

Edit

In this example, we will show you how to simply round a number to four decimal places using ROUND() function.

Query:

xxxxxxxxxx
 
SELECT ROUND(100.12345, 4);

Output:

xxxxxxxxxx
 
100.12350

To show more complex example of how the ROUND() function works, we will use the following table:

MS SQL Server - example data used with ROUND() function

Note:

At the end of this article you can find database preparation SQL queries.

Example 1

Edit

In this example, we will round the salary column to 0 decimal places.

Query:

xxxxxxxxxx
 
SELECT ROUND([salary], 0)
FROM [users];

Output:

Example 2

Edit

In this example, we will display the average salary rounded to 2 decimal places.

Query:

xxxxxxxxxx
 
SELECT ROUND(AVG([salary]), 2)
FROM [users];

Output:

Database preparation

Edit

create_tables.sql file:

xxxxxxxxxx
 
CREATE TABLE [users] (
    [id] INT IDENTITY(1,1),
    [name] VARCHAR(50) NOT NULL,
    [surname] VARCHAR(50) NOT NULL,
    [department_id] INT,
    [salary] DECIMAL(15,2) NOT NULL,
    PRIMARY KEY ([id])
);

insert_data.sql file:

xxxxxxxxxx
 
INSERT INTO [users]
    ( [name], [surname], [department_id], [salary])
VALUES
    ('John', 'Stewart', 1, '3512.00'),
    ('Chris', 'Brown', 2, '1344.00'),
    ('Kate', 'Lewis', 3, '6574.00'),
    ('Ailisa', 'Gomez', NULL, '6500.00'),
    ('Gwendolyn', 'James', 2, '4200.00'),
    ('Simon', 'Collins', 4, '3320.00'),
    ('Taylor', 'Martin', 2, '1500.00'),
    ('Andrew', 'Thompson', NULL, '2100.00');