Explain the String Function ' RTRIM ' in Tableau with Example?

 In Tableau, the RTRIM function is used to remove trailing spaces from the right side of a string. It allows you to eliminate any whitespace characters, such as spaces, tabs, or line breaks, at the end of a string.

The syntax for the RTRIM function in Tableau is as follows:

RTRIM(string)

• string is the original string from which you want to remove trailing spaces.

Here's an example to illustrate the usage of the RTRIM function in Tableau:

Let's assume we have a dataset with a column called "Product Name," which contains the names of various products. Some of the product names have extra spaces at the end.

Product Name
Product A
Product B
Product C
Product D

However, in the underlying data, some of the product names have trailing spaces, like "Product A ".

To remove the trailing spaces from the "Product Name" column using the RTRIM function, you can create a calculated field in Tableau:

1. Right-click on a blank area in the "Data" pane in Tableau.
2. Select "Create Calculated Field."
3. In the formula editor, enter the following expression:

RTRIM([Product Name])

4. Click "OK" to create the calculated field.

The calculated field, which utilizes the RTRIM function, will remove any trailing spaces from the "Product Name" column.

The resulting dataset will be as follows:

Product Name	Trimmed Product Name
Product A	Product A
Product B	Product B
Product C	Product C
Product D	Product D

As shown in the example, the RTRIM function eliminates any trailing spaces from the "Product Name" column. The resulting column, named "Trimmed Product Name," contains the product names without any trailing spaces.

It's important to note that the RTRIM function only removes spaces from the right side of the string. If you want to remove leading spaces as well, you can use the LTRIM function, which removes spaces from the left side of the string, or the TRIM function, which removes spaces from both the left and right sides of the string.

By utilizing the RTRIM function, you can ensure consistency in string values and avoid any unintended issues caused by trailing spaces in your Tableau visualizations and analyses.