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Release 7.6.2



All alphabetical characters in the input value are converted to lowercase in the output value.

Input can be a column reference or a string literal.

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 string value from the MyName column in lowercase. 

String literal example:

lower('Hello, World')

Output: The string hello, world is returned.

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 converted.

  • 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 - uppercase, lowercase, propercase functions


In the following example, you can see a number of input values in the leftmost column. The output columns are blank.


AbCdEfGh IjKlMnO

go West, young man!

Oh, *(*$%(&! That HURT!

A11 w0rk and n0 0play makes Jack a dull boy.


To generate uppercase, lowercase, and propercase values in the output columns, use the following transforms:

Transformation Name Edit column with formula
Parameter: Columns uppercase
Parameter: Formula UPPER(input)

Transformation Name Edit column with formula
Parameter: Columns lowercase
Parameter: Formula LOWER(input)

Transformation Name Edit column with formula
Parameter: Columns propercase
Parameter: Formula PROPER(input)


AbCdEfGh IjKlMnOABCDEFGH IJKLMNOabcdefgh ijklmnoAbcdefgh Ijklmno
go West, young man!GO WEST, YOUNG MAN!go west, young man!Go West, Young Man!
Oh, *(*$%(&! That HURT!OH, *(*$%(&! THAT HURT!oh, *(*$%(&! that hurt!Oh, *(*$%(&! That Hurt!
A11 w0rk and n0 0play makes Jack a dull boy.A11 W0RK AND N0 0PLAY MAKES JACK A DULL BOY.a11 w0rk and n0 0play makes jack a dull boy.A11 W0rk And N0 0play Makes Jack A Dull Boy.


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