trim function

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

Removes the leading or trailing space characters from str.

Removes the leading or trailing trimStr characters from str.

Syntax 

trim(str)

trim(BOTH FROM str)

trim(LEADING FROM str)

trim(TRAILING FROM str)

trim(trimStr FROM str)
trim(BOTH trimStr FROM str)

trim(LEADING trimStr FROM str)

trim(TRAILING trimStr FROM str)

Arguments

  • trimStr: A STRING expression with a set of characters to be trimmed.

  • str: A STRING expression to be trimmed.

Returns

A STRING.

Examples 

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

> SELECT '+' || trim(BOTH FROM '    SparkSQL   ') || '+';
 +SparkSQL+

> SELECT '+' || trim(LEADING FROM '    SparkSQL   ') || '+';
 +SparkSQL   +

> SELECT '+' || trim(TRAILING FROM '    SparkSQL   ') || '+';
 +    SparkSQL+

> SELECT trim('SL' FROM 'SSparkSQLS');
 parkSQ

> SELECT trim(BOTH 'SL' FROM 'SSparkSQLS');
 parkSQ

> SELECT trim(LEADING 'SL' FROM 'SSparkSQLS');
 parkSQLS

> SELECT trim(TRAILING 'SL' FROM 'SSparkSQLS');
 SSparkSQ

> SELECT trim(BOTH 'sl' COLLATE UTF8_BINARY FROM 'SSparkSQLS');
 SSparkSQLS

> SELECT trim(BOTH 'sl' COLLATE UTF8_LCASE FROM 'SSparkSQLS');
 parkSQ