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SUM_IF

SUM_IF

The suffix -If can be appended to the name of any aggregate function. In this case, the aggregate function accepts an extra argument – a condition.

SUM_IF(<column>, <cond>)

Example

Create a Table and Insert Sample Data

CREATE TABLE order_data (
id INT,
customer_id INT,
amount FLOAT,
status VARCHAR
);

INSERT INTO order_data (id, customer_id, amount, status)
VALUES (1, 1, 100, 'Completed'),
(2, 2, 50, 'Completed'),
(3, 3, 80, 'Cancelled'),
(4, 4, 120, 'Completed'),
(5, 5, 75, 'Cancelled');

Query Demo: Calculate the Total Amount of Completed Orders

SELECT SUM_IF(amount, status = 'Completed') AS total_amount_completed
FROM order_data;

Result

| total_amount_completed |
|------------------------|
| 270.0 |
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