SUM
Description
Used to return the sum of all values of the selected field
Syntax
SUM(<expr>)Parameters
| Parameter | Description |
|---|---|
<expr> | The field to calculate the sum of |
Return Value
Return the sum of all values of the selected field.
Examples
-- Create sample tables
CREATE TABLE sales_table (
product_id INT,
price DECIMAL(10,2),
quantity INT
) DISTRIBUTED BY HASH(product_id)
PROPERTIES (
"replication_num" = "1"
);
-- Insert test data
INSERT INTO sales_table VALUES
(1, 99.99, 2),
(2, 159.99, 1),
(3, 49.99, 5),
(4, 299.99, 1),
(5, 79.99, 3);
-- Calculate the total sales amount
SELECT SUM(price * quantity) as total_sales
FROM sales_table;+-------------+
| total_sales |
+-------------+
| 1149.88 |
+-------------+