
SQL Aggregate Functions - SQL Tutorial
An SQL aggregate function calculates on a set of values and returns a single value. For example, the average function AVG takes a list of values and returns the average. Since an aggregate …
SQL ANY_VALUE Aggregate Function - SQL Tutorial
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 …
SQL MAX Aggregate Function - SQL Tutorial
In this tutorial, you will learn how to find the maximum value in a group using the SQL MAX aggregate function.
SQL COUNT Aggregate Function - SQL Tutorial
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 AVG Function - SQL Tutorial
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 …
SQL ROLLUP - SQL Tutorial
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 …
SQL GROUP BY - SQL Tutorial
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.
SQL Window Functions - SQL Tutorial
There are three types of window functions including value window functions, aggregation window functions, and ranking window functions. Value window functions # FIRST_VALUE() LAG() …
SQL SUM Function In Actions - SQL Tutorial
The SUM function is an aggregate function that returns the sum of all or distinct values. We can apply the SUM function to the numeric column only. The following illustrates the syntax of the …
SQL CUBE - SQL Tutorial
You can apply an aggregate function for each group to return an aggregated value like SUM, AVG, MIN, MAX, and COUNT. The CUBE is an extension of the GROUP BY clause, which …