Returns the number of characters in a string or the number of bytes required to store a variable.
Len(string | varname)
The Lens yntax has these parts:
| Part | Description | 
|---|---|
| string | Any valid string expression. If string contains Null, Null is returned. | 
| varname | Any valid variable name. If varname contains Null, Null is returned. | 
Note The LenB s used with byte data contained in a string. Instead of returning the number of characters in a string, LenB returns the number of bytes used to represent that string.