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SQL - LEN Function

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SQL Tutorial - SQL LEN Function

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

SQL LEN() SYNTAX

SELECT LEN(columnname)
FROM
tablename

Length Example

The Products table has the following records:

ProductID	ProductName	ProductPrice
Prd001	Pen	40.25
Prd002	Pen	100.75
Prd003	Eraser	10.35
Prd004	Pencil	20.45
Prd005	Book	50.65
Prd006	Gum	25.22

To find the length of the value in the 'ProductName' column from the 'Products' table, the 'Len' function can be used as shown below.

SELECT ProductName, LEN(ProductName) as ProductNameLength
FROM
Products

ProductName	ProductNameLength
Pen	3
Pen	3
Eraser	6
Pencil	6
Book	4
Gum	3

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