SQL SUM( ) Function |
SQL Sample Code - SQL SUM( ) Function |
| SELECT SUM(column_name) FROM table_name; |
See the SQL samples section below for an explanation of the SUM function.
What does the SUM() Function do? |
The SQL SUM() function calculates the sum of all values in a column.
Note: The SUM() function can only be used on database columns with numeric based data-types. See our data-types section for more information.
Sample 1 – SQL SUM() Function |
In this SQL sample we will use the database table ‘tblCompany’.
| Company_ID | CompanyName | Address | Town | Sales |
| 1 | SQL Sample | 1 Sample St | Hamburg | 10000 |
| 2 | SQL Code Land | 2 Code Rd | Hamburg | 20000 |
| 3 | Sample Code World | 66 SQL St | Curry | 18000 |
| 4 | SQL Reference Ltd | 34 Reference St | Pisa | 17000 |
In this example we want to know the total SUM() for the Sales column in the tblCompany table.
Use the SELECT statement below:
| SELECT SUM(Sales) AS Total_Sales FROM tblCompany; |
The result will look like this:
| Total_Sales |
| 65000 |
Note: the AS operator is used to name the result column as ‘Total_Sales’. See the Alias section of this website to learn more about renaming database columns and tables.
Sample 2 – SQL SUM() Function using GROUP BY. |
In this SQL sample we will use the database table ‘tblCompany’.
| Company_ID | CompanyName | Address | Town | Sales |
| 1 | SQL Sample | 1 Sample St | Hamburg | 10000 |
| 2 | SQL Code Land | 2 Code Rd | Hamburg | 20000 |
| 3 | Sample Code World | 66 SQL St | Curry | 18000 |
| 4 | SQL Reference Ltd | 34 Reference St | Pisa | 17000 |
In this SQL sample we want to know the total SUM() for the Sales column in the tblCompany table for each Town.
Use the SELECT statement below:
| SELECT Town, SUM(Sales) FROM tblCompany GROUP BY Town; |
The result will look like this:
| Town | SUM(Sales) |
| Hamburg | 30000 |
| Curry | 18000 |
| Pisa | 17000 |
Related SQL Sample Code:
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