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 …

Introduction to SQL AVG function # 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] …

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 …

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 …

In this tutorial, you will learn how to find the maximum value in a group using the SQL MAX aggregate function.

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 …

How the query works. First, use the GROUP BY clause to group employees by department. Second, use the MIN function to find the lowest salary per group. Third, apply the condition to …

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 …

In practice, you often use the GROUP BY clause with an aggregate function such as MIN, MAX, AVG, SUM, or COUNT to calculate a measure that provides the information for each group. …

select * from table_name; Code language: SQL (Structured Query Language) (sql) By convention, we’ll use write SQL keywords in uppercase and identifiers such as table names in lowercase. …