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

 In Tableau, the REPLACE function is used to substitute a specific portion of a string with a new value. It allows you to find and replace occurrences of a substring within a given string, helping you manipulate and transform text data.

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

REPLACE(string, find, replace_with)

• string is the original string in which you want to perform the replacement.
• find is the substring you want to search for within the original string.
• replace_with is the new value you want to replace the found substring with.

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

Let's assume we have a dataset with a column called "Product Description," which contains descriptions of various products. We want to replace a specific word or phrase in the descriptions with a new value.

Product Description

This is a great product for all your needs.

Our product is highly recommended by experts.

Get the best deal on our premium product.

Upgrade to our latest product for enhanced features.

To replace the word "product" in the "Product Description" column with the word "item," you can use the REPLACE function as follows:

    REPLACE([Product Description], "product", "item")

The result will be a new column with the replaced values:

Product Description                                         Updated Description

This is a great product for all your needs.                         This is a great item for all your needs.

Our product is highly recommended by experts.                 Our item is highly recommended by                                                                                                             experts.

Get the best deal on our premium product.                         Get the best deal on our premium item.

Upgrade to our latest product for enhanced features.         Upgrade to our latest item for enhanced                                                                                                         features.

In this example, the REPLACE function replaces the word "product" with "item" in the "Product Description" column, generating a new column named "Updated Description" that contains the modified descriptions.

It's important to note that the REPLACE function in Tableau is case-sensitive. If the substring to be replaced is not found within the original string, the function will return the original string as is.

By using the REPLACE function, you can modify and transform text data in Tableau to better suit your analysis or visualization requirements.