SQL Sum If

SQL Sum If is a command used to sum a specific set of data in a database table based on a certain condition.

Syntax

The syntax for SQL Sum If statement is:

SELECT SUM(column_name) FROM table_name WHERE condition;

Parameters

• column_name: The name of the column to be summed.
• table_name: The name of the table to be searched.
• condition: The condition to be met for summing the data.

Example

Suppose we have a table named sales with the following data:

| id | product | amount | | -- | ------- | ------ | | 1 | A | 100 | | 2 | B | 200 | | 3 | A | 300 | | 4 | B | 400 |

To sum the amount of sales of product A, we would use the following SQL query:

SELECT SUM(amount) FROM sales WHERE product = 'A';

This would return the following result:

| SUM(amount) | | ----------- | | 400 |

This means that the total amount of sales for product A is 400.

Conclusion

SQL Sum If is a useful command in SQL that allows for the calculation of specific data in a database table based on a condition. With this command, developers can easily sum data without having to manually add up the values.