Published on: 23 September, 2013


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SQL AVG() Function

The SQL AVG() function is used to return an average number value from a selected column.

Example Customer Table

The following data table is for example only. Let's use AVG() function to get the average age from a customer table. The column we going to use are the Age columns.

ID Name Age
1 Thomas Anderson 45
2 Andrew Golden 38
3 Ken Tom 30
4 Andrew Golden 36
5 Timothy Kirk 32
6 Kelly Smith 39

Example of Running SQL Query

SELECT   AVG(Age) AS Average_Age
FROM   Customers

After running the above query, it will return the following result.


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