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SUM

Aggregate function.

The SUM() function calculates the sum of a set of values.

caution

NULL values are not counted.

Syntax

SUM(<expr>)

Arguments

ArgumentsDescription
<expr>Any numerical expression

Return Type

A double if the input type is double, otherwise integer.

Example

Create a Table and Insert Sample Data

CREATE TABLE sales_data (
id INT,
product_id INT,
quantity INT
);

INSERT INTO sales_data (id, product_id, quantity)
VALUES (1, 1, 10),
(2, 2, 5),
(3, 3, 8),
(4, 4, 3),
(5, 5, 15);

Query Demo: Calculate the Total Quantity of Products Sold

SELECT SUM(quantity) AS total_quantity_sold
FROM sales_data;

Result

| total_quantity_sold |
|---------------------|
| 41 |
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