len function

Applies to: check marked yes Databricks SQL preview check marked yes Databricks Runtime 11.3 LTS and above

Returns the character length of string data or number of bytes of binary data. This function is a synonym for character_length function and char_length function.

Syntax 

len(expr)

Arguments

  • expr: A STRING or BINARY expression.

Returns

An INTEGER.

The length of string data includes the trailing spaces. The length of binary data includes trailing binary zeros.

Examples 

> SELECT len('Spark SQL ');
 10
> SELECT len('床前明月光');
 5