Used to return the sum of all values of the selected field
SUM(<expr>)
| Parameter | Description |
|---|---|
<expr> | The field to calculate the sum of |
Return the sum of all values of the selected field.
-- 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 | +-------------+