Summary: in this tutorial, you will learn about the SQL aggregate functions including AVG(), COUNT(), MIN(), MAX(), and SUM(). An SQL aggregate function calculates on a set of values …

In this tutorial, you will learn about the SQL aggregate functions including AVG(), COUNT(), MIN(), MAX(), and SUM().

The AVG function is an aggregate function that calculates the average value of a set. Here’s the syntax of the AVG function: AVG([ALL|DISTINCT] expression) Code language: SQL …

In SQL, the ANY_VALUE aggregate function returns any value from a set of values. Unlike other aggregate functions like MIN or MAX , which returns a specific value, the ANY_VALUE picks …

Introduction to SQL Window Functions # The aggregate functions perform calculations across rows and return a single output row. The following query uses the SUM() aggregate function to …

This tutorial introduces you SQL GROUP BY that combines rows into groups and apply aggregate function such as AVG, SUM, COUNT, MIN, MAX to each group.

Summary: In this tutorial, you’ll learn how to use the SQL ROLLUP to return aggregated results at multiple levels of detail. Introduction to the SQL ROLLUP # The GROUP BY clause allows you …

The SQL COUNT function is an aggregate function that returns the number of rows returned by a query. For example, you can use the COUNT function in the SELECT statement to get the …

SQL LAG() is a window function that provides access to a row at a specified physical offset which comes before the current row. In other words, by using the LAG() function, from the current …

This tutorial shows how to use SQL RANK() function to find ranks of rows in a result set. It provides some practical applications of the RANK() function.