How do I subtract two column values in the same table in MySQL?

 To subtract two column values in the same table in MySQL, you can simply use the subtraction operator (-) in a SELECT statement. Here's the basic syntax:

SELECT column1 - column2 AS result
FROM table_name;

Explanation:

• column1 and column2 are the names of the columns you want to subtract.
• table_name is the name of the table where these columns are located.
• result is the alias for the output column that will show the result of the subtraction.

Example:

Suppose you have a table sales with columns total_sales and returns, and you want to calculate the net sales by subtracting the returns from total_sales. The query would look like this:

SELECT total_sales - returns AS net_sales
FROM sales;

This will return a result set with a column named net_sales, which is the result of subtracting returns from total_sales for each row in the sales table.