Description: The DAX function ‘BETWEEN’ is a logical tool used in the DAX (Data Analysis Expressions) formula language, primarily employed in data analysis tools such as Microsoft Power BI, Excel, and SQL Server Analysis Services. Its fundamental purpose is to check if a specific value falls within a range defined by two limits: a minimum value and a maximum value. This function returns a boolean value, meaning ‘TRUE’ if the value is within the range and ‘FALSE’ if it is not. The syntax of the function is simple and straightforward, making it accessible even for those starting to work with DAX. The ‘BETWEEN’ function is particularly useful in data analysis as it allows analysts and developers to create filters and conditions that facilitate data segmentation and the generation of more accurate reports. Its use extends to various applications, from evaluating performance metrics to creating interactive dashboards, where data visualization is key to informed decision-making.
Uses: The ‘BETWEEN’ function is primarily used in data analysis to establish conditions that allow for filtering information. For example, it can be applied in financial reports to determine if the revenues of a specific period fall within an expected range. It is also useful in creating interactive dashboards, where users can visualize data that meets certain criteria, thus facilitating decision-making. Additionally, it can be used in data validation, ensuring that entered values fall within an acceptable range.
Examples: A practical example of the ‘BETWEEN’ function would be in a sales report, where one wants to know if the sales of a product in a given month are between 1000 and 5000 units. The DAX formula could be: ‘BETWEEN(Sales[Quantity], 1000, 5000)’, which would return ‘TRUE’ if the sales are within that range and ‘FALSE’ otherwise. Another example would be in analyzing student scores, where one could check if a score is between 60 and 100 to determine if the student has passed.
