Languages
[Edit]
EN

MySQL - SUM() function example

0 points
Created by:
Dharman
338

In this article, we would like to show you how to use SUM() function in MySQL.

Quick solution:

SELECT SUM(`column_name`) FROM `table_name`;

Practical example 

To show how the SUM() function works, we will use the following table:

MySQL - example data used with SUM() function
MySQL - example data used with SUM() function

Note:

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

Example

In this example, we will display the sum of values in salary column.

Query:

SELECT SUM(`salary`) FROM `users`;

Output:

MySQL - SUM() function result
MySQL - SUM() function result

 

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');

MySQL - functions

Native Advertising
ūüöÄ
Get your tech brand or product in front of software developers.
For more information Contact us
Dirask - we help you to
solve coding problems.
Ask question.

‚̧ԳŹūüíĽ ūüôā

Join