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SQL LEN() Function

The LEN() Function

The LEN() function returns the length of the value in a text field.

SQL LEN() Syntax

SELECT LEN(column_name) FROM table_name;

Demo Database

In this tutorial we will use the well-known Northwind sample database.

Below is a selection from the "Customers" table:

CustomerID CustomerName ContactName Address City PostalCode Country

Alfreds Futterkiste Maria Anders Obere Str. 57 Berlin 12209 Germany
2 Ana Trujillo Emparedados y helados Ana Trujillo Avda. de la Constituci??n 2222 M??xico D.F. 05021 Mexico
3 Antonio Moreno Taquer??a Antonio Moreno Mataderos 2312 M??xico D.F. 05023 Mexico

Around the Horn Thomas Hardy 120 Hanover Sq. London WA1 1DP UK
5 Berglunds snabbk??p Christina Berglund Berguvsv??gen 8 Lule?? S-958 22 Sweden

SQL LEN() Example

The following SQL statement selects the "CustomerName" and the length of the values in the "Address" column from the "Customers" table:


SELECT CustomerName,LEN(Address) as LengthOfAddress
FROM Customers;
Try it yourself »