SQL SUM() Function
The SUM() Function
The SUM() function returns the total sum of a numeric column.
SQL SUM() Syntax
SELECT SUM(column_name) FROM table_name;
Demo Database
In this tutorial we will use the well-known Northwind sample database.
Below is a selection from the "OrderDetails" table:
| OrderDetailID | OrderID | ProductID | Quantity |
|---|---|---|---|
| 1 | 10248 | 11 | 12 |
| 2 | 10248 | 42 | 10 |
| 3 | 10248 | 72 | 5 |
| 4 | 10249 | 14 | 9 |
| 5 | 10249 | 51 | 40 |
SQL SUM() Example
The following SQL statement finds the sum of all the "Quantity" fields for the "OrderDetails" table:
