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Release 7.1.2




Removes leading and trailing whitespace from a string. Spacing between words is not removed.
  • If a string begins or ends with spaces, tabs, or other non-visible characters, they are removed by this function.
  • The TRIM function does not remove whitespace between non-whitespace values, such as spaces between words. To remove that type of whitespace, use REMOVEWHITESPACE. See REMOVEWHITESPACE Function.

Wrangle vs. SQL: This function is part of Wrangle, a proprietary data transformation language. Wrangle is not SQL. For more information, see Wrangle Language.

Basic Usage

Column reference example:


Output: Returns the values of the MyName column value with whitespace removed from the beginning and the end. 

String literal example:

trim(' Hello, World ')

Returns the string:Hello, World.

Syntax and Arguments


ArgumentRequired?Data TypeDescription
column_stringYstringName of the column or string literal to be applied to the function

For more information on syntax standards, see Language Documentation Syntax Notes.


Name of the column or string constant to be trimmed.

  • Missing string or column values generate missing string results.
  • String constants must be quoted ('Hello, World').
  • Multiple columns and wildcards are not supported.

Usage Notes:

Required?Data TypeExample Value
YesString literal or column referencemyColumn


Tip: For additional examples, see Common Tasks.

Example - Trimming leading and trailing whitespace

In this example, whitespace values are identified according to this table. The ASCII value column identifies that ASCII character value that represents the character. 

  • The ASCII character set is a standard method for representing keyboard and special characters on the computer. For more information on ASCII, see
ValueDefinitionASCII value
(tab)tab characterChar(9)
(cr)carriage returnChar(13)


In the following example dataset, input values are represented in the mystring. The values in the table above are represented in the string values below.

Here's my string.
(space)(space)Here's my string.(space)(space)
(tab)Here's my string.(tab)
(cr)Here's my string.(cr)
(nl)Here's my string.(nl)
(space)(space)(tab)Here's my string.(tab)(space)(space)
(space)(space)(tab)(cr)Here's my string.(cr)(tab)(space)(space)
(space)(space)(tab)(nl)(cr)Here's my string.(cr)(nl)(tab)(space)(space)


When the above CSV data is imported into the Transformer page, it is represented as the following:

Here's my string.
(space)(space)Here's my string.(space)(space)
"(tab)Here's my string.(tab)"
"(cr)Here's my string.(cr)"
"(nl)Here's my string.(nl)"
"(space)(space)(tab)Here's my string.(tab)(space)(space)"
"(space)(space)(tab)(cr)Here's my string.(cr)(tab)(space)(space)"
"(space)(space)(tab)(nl)(cr)Here's my string.(cr)(nl)(tab)(space)(space)"


You might notice the quote marks around most of the imported values. 

NOTE: If an imported string value contains tab, carriage return, or newline values, it is bracketed by double quotes.

The first step is to remove the quote marks. You can select one of the quote marks in the data grid and then select the appropriate Replace suggestion card. The transform should look like the following:

Transformation Name Replace text or pattern
Parameter: Column mystring
Parameter: Find `"`
Parameter: Replace with ''
Parameter: Match all occurrences true

Now, you can apply the trim function:

Transformation Name New formula
Parameter: Formula type Single row formula
Parameter: Formula trim(mystring)
Parameter: New column name 'trim_mystring'


In the generated trim_mystring column, you can see the cleaned strings:

Here's my string.Here's my string.
(space)(space)Here's my string.(space)(space)Here's my string.
"(tab)Here's my string.(tab)"Here's my string.
"(cr)Here's my string.(cr)"Here's my string.
"(nl)Here's my string.(nl)"Here's my string.
"(space)(space)(tab)Here's my string.(tab)(space)(space)"Here's my string.
"(space)(space)(tab)(cr)Here's my string.(cr)(tab)(space)(space)"Here's my string.
"(space)(space)(tab)(nl)(cr)Here's my string.(cr)(nl)(tab)(space)(space)"Here's my string.

Tip: If any bracketing double quotes are removed, then tab, carriage return, and newline values are trimmed by the TRIM function.

Example - String cleanup functions together

The following example demonstrates functions that can be used to clean up strings. These functions include the following:


In the following (space) and (tab) indicate space keys and tabs, respectively. Carriage return and newline characters are also supported by whitespace functions.

String01this source(space)(space)
String02(tab)(tab)this source
String03(tab)(tab)this source(space)(space)
String04this source's?
String05Why, you @#$%^&*()!
String06this söurce
String07(space)this söurce
String08à mañana


The following transformation steps generate new columns using each of the string cleanup functions:

Transformation Name New formula
Parameter: Formula type Single row formula
Parameter: Formula TRIM(source)
Parameter: New column name 'trim_source'

Transformation Name New formula
Parameter: Formula type Single row formula
Parameter: Formula REMOVEWHITESPACE(source)
Parameter: New column name 'removewhitespace_source'

Transformation Name New formula
Parameter: Formula type Single row formula
Parameter: Formula REMOVESYMBOLS(source)
Parameter: New column name 'removesymbols_source'


String01this source(space)(space)  this source(space)(space)  thissourcethis source
String02(tab)(tab)this source(tab)(tab)this sourcethissourcethis source
String03(tab)(tab)this source(space)(space)(tab)(tab)this source(space)(space)thissourcethis source
String04this source's?this sourcesthissource's?this source's?
String05"Why, you @#$%^&*()!"Why you Why,you@#$%^&*()!Why, you @#$%^&*()!
String06this söurcethis söurcethissöurcethis söurce
String07(space)this söurce(space)this söurcethissöurcethis söurce
String08à mañanaà mañanaàmañanaà  mañana


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