SQL LEN() Function

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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

## SQL LEN() Example

We have the following "Persons" table:

P_Id | LastName | FirstName | Address | City
--- | --- | --- | --- | ---
1 | Hansen | Ola | Timoteivn 10 | Sandnes
2 | Svendson | Tove | Borgvn 23 | Sandnes
3 | Pettersen | Kari | Storgt 20 | Stavanger

Now we want to select the length of the values in the "Address" column above.

We use the following SELECT statement:

    SELECT LEN(Address) as LengthOfAddress FROM Persons

The result-set will look like this:

LengthOfAddress
12
9
9

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