Converts an input string to propercase. Input can be a column reference or a string literal.
Propercase is strict title case. If the first character of any non-breaking segment of letters in the string is an alphabetical character, it is capitalized. Otherwise, the string is unchanged. See the examples below.
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:
proper(MyName)
Output: Returns the string values in the MyName column value written in Proper Case.
String literal example:
proper('Hello, world')
Output: The string Hello, World is written to the new column.
Syntax and Arguments
proper(column_string)
| Argument | Required? | Data Type | Description |
|---|---|---|---|
| column_string | Y | string | Name of the column or string literal to be applied to the function |
For more information on syntax standards, see Language Documentation Syntax Notes.
column_string
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 Type | Example Value |
|---|---|---|
| Yes | String literal or column reference | myColumn |
Tip: For additional examples, see Common Tasks.
Examples
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.
| input | uppercase | lowercase | propercase |
|---|---|---|---|
| AbCdEfGh IjKlMnO | |||
| go West, young man! | |||
| Oh, *(*$%(&! That HURT! | |||
| A11 w0rk and n0 0play makes Jack a dull boy. |
Transformation:
To generate uppercase, lowercase, and propercase values in the output columns, use the following transforms:
| Transformation Name | Edit column with formula |
|---|---|
| Parameter: Columns | uppercase |
| Parameter: Formula | UPPER(input) |
| Transformation Name | Edit column with formula |
|---|---|
| Parameter: Columns | lowercase |
| Parameter: Formula | LOWER(input) |
| Transformation Name | Edit column with formula |
|---|---|
| Parameter: Columns | propercase |
| Parameter: Formula | PROPER(input) |
Results:
| input | uppercase | lowercase | propercase |
|---|---|---|---|
| AbCdEfGh IjKlMnO | ABCDEFGH IJKLMNO | abcdefgh ijklmno | Abcdefgh Ijklmno |
| go West, young man! | GO WEST, YOUNG MAN! | go west, young man! | Go West, Young Man! |
| Oh, *(*$%(&! 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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