EN
MySQL - calculate average of column values and display the result with no decimals
0
points
In this article, we would like to show you how to calculate the average of column values and display the result with no decimals in MySQL.
Quick solution:
SELECT ROUND(AVG(`column_name`), 0)
FROM `table_name`;
Practical example
To show how to calculate the average of column values and display the result with no decimals, we will use the following table:
Note:
At the end of this article you can find database preparation SQL queries.
Example
In this example, we will display the average salary rounded to 0 decimal places with ROUND() function.
Query:
SELECT ROUND(AVG(`salary`), 0)
FROM `users`;
Output:
Note:
Go to this article to read more about
ROUND()function - MySQL - ROUND() function example.
Database preparation
create_tables.sql file:
CREATE TABLE `users` (
`id` INT(10) UNSIGNED NOT NULL AUTO_INCREMENT,
`name` VARCHAR(50) NOT NULL,
`surname` VARCHAR(50) NOT NULL,
`department_id` INT(10) UNSIGNED,
`salary` DECIMAL(15,2) NOT NULL,
PRIMARY KEY (`id`)
);
insert_data.sql file:
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');