rtrim function

Applies to: check marked yes Databricks SQL check marked yes Databricks Runtime

Returns str with trailing characters removed.

Syntax 

rtrim( [trimStr ,] str)

Arguments

  • trimStr: An optional STRING expression with characters to be trimmed. The default is a space character.

  • str: A STRING expression to be trimmed.

Returns

A STRING.

The function removes any trailing characters within trimStr from str.

Examples 

> SELECT rtrim('SparkSQL   ') || '+';
 SparkSQL+

> SELECT rtrim('ab', 'SparkSQLabcaaba');
 SparkSQLabc

> SELECT rtrim('AB', 'SparkSQLabcaaba' COLLATE UTF8_BINARY);
 SparkSQLabcaaba

> SELECT rtrim('AB', 'SparkSQLabcaaba' COLLATE UTF8_LCASE);
 SparkSQL

-- RTRIM collation can be used instead of the rtrim function in many cases.
> SELECT 'hello' = rtrim('hello  '),
         'hello' = 'hello  ' COLLATE UTF8_BINARY_RTRIM;
   true true