AVG() Function in SQL
The SQL function AVG() is designed for calculating the average value of any numeric column within a certain data set. It does this by adding up all the values of the column and then dividing the resulting number by the number of non-null values of the column.
Thus, the function is best suited to propose a typical value of a given data set which helps to analyze the data-set features.
Syntax:
The syntax of the AVG() function is straightforward:
SELECT AVG(column_name)
FROM table_name;
Here, column_name represents the column from which you want to compute the average, and table_name is the name of the table containing the data. Optionally, you can use the WHERE clause to specify conditions for filtering the data before calculating the average.
AVG() Function in SQL
SQL is an RDBMS system in which SQL functions become very essential to provide us with primary data insights. One of the most important functions is called AVG() and is particularly useful for the calculation of averages within datasets.
In this, we will learn about the AVG() function, and its syntax by understanding various examples and their output with explanation and so on.