Using a combination of PHP and MySQL functions, you can query an online database for numerical values, add them together and display the results on your Web page. You have to use the functions in a ...

-- MySQL's aggregate function is used to perform calculations on multiple values and return the result in a single value like -- the average of all values, the sum of all values, and maximum & minimum ...

An aggregate function performs a calculation on multiple values and returns a single value. For example, you can use the AVG() aggregate function that takes multiple numbers and returns the average ...