An aggregate function is a function that performs a calculation on a set of values, and returns a single value. Aggregate functions are often used with the GROUP BY clause of the SELECT statement. The ...

SQL window functions are calculation functions similar to aggregate functions but, unlike normal aggregate functions like “group by,” have access to individual rows and can even add some of ...

In SQL, you may be able to use any of the following aggregate functions: COUNT() SUM() AVG() MIN() MAX() However, when using any of the above aggregate functions, remember the following extra ...

GROUP BY Clause: The “GROUP BY” clause helps summarize or aggregate data, such as calculating total profits, sales, or counting students in a department. For instance, it can be used to sum daily ...

Aggregate functions are often used with the GROUP BY clause of the SELECT statement. The GROUP BY clause splits the result-set into groups of values and the aggregate function can be used to return a ...