What is the purpose of the Upper function in string manipulation?

The Upper function in string manipulation is designed to convert all characters in a given string to upper case. This is useful in various scenarios, such as when you need to standardize data for comparison, formatting reports, or simply ensuring consistency in the presentation of text. By transforming a string to upper case, any variations in letter casing are eliminated, making it easier to match or organize data.

This is a fundamental function in many programming languages and data manipulation tools, including Qlik Sense. It is particularly relevant when dealing with textual data where consistency is crucial for analysis and reporting. The other functions listed are focused on different transformations or manipulations of strings that do not involve converting characters to upper case, making them unsuitable in this context.