To use Aggregate functions on subgroups within the total result set, place the Aggregate function in the Select clause and add the Group By clause to the query.
<h3>What is an aggregate function?</h3>
An aggregate function is known to be a tool that functions only by calculating one or more values and then it also returns a single value.
Conclusively, The aggregate function is a tool that is often employed with the GROUP BY clause and HAVING clause of the SELECT words.
