SQL Aggregate Functions. 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.

Apr 15, 2025 · Commonly used aggregate functions include COUNT(), SUM(), AVG(), MIN(), and MAX(). In this article, we will explain the most commonly used SQL aggregate functions, their syntax, practical examples, and how to make the best use of them in your queries

Apr 18, 2024 · SQL’s aggregate functions are used when you want to do computations on data and return a single value. The most common aggregate functions in SQL are: COUNT () – Counts the rows in the stated column. SUM () – Returns the sum of all values. AVG () – Computes the average of a group of values.

Nov 11, 2021 · SQL aggregate functions accumulate data from multiple rows into a single summary row. The accumulated value is based on the values from the column passed as an argument. We can group the rows using a GROUP BY clause and further filter them using a HAVING clause. A standard example is finding the number of rows in a table.

This tutorial introduces you to the most commonly used SQL aggregate functions including AVG, COUNT, MAX, MIN and SUM functions.

Mar 19, 2024 · In this Cheat Sheet, we’ll demonstrate the following SQL aggregate functions: SUM() – Returns the total of all values. AVG() – Returns the mean average of all values. COUNT() – Counts and returns the number of values. MIN() – Returns the smallest value. MAX() – Returns the largest value. We’ll also show how to use aggregate functions:

Oct 29, 2024 · SQL has many aggregate functions, including average, count, sum, min, and max. All aggregate functions ignore NULL values while calculating, except the Count function. What is an Aggregate Function in SQL? An aggregate function in SQL returns one value after calculating multiple column values.

The following functions are called SQL aggregate functions, because their semantics are similar to those in standard SQL: they work in conjunction with grouping and they aggregate values across the rows of a group. ... the genres watched by customers are fetched as a row-level array. For example, for the country USA, you see 2 arrays of genres ...

Jul 2, 2024 · There are 5 types of SQL aggregate functions: Count (): provides the count of rows in a set. Sum (): calculates the total sum of a numerical column. Avg (): computes the average value of a numerical column. Min (): retrieves the minimum value from the chosen column. Max (): fetches the maximum value from the selected column.

In this article, we will explain all the different types of aggregate functions in SQL, how to use them, best practices, and their benefits.