Alteryx Foundation Micro-Credential Practice Exam

Will the isNull() function evaluate (Null) values in Alteryx?

1. Yes, it will.

2. No, it will not.

3. Only if specified.

4. Sometimes, depending on context.

The correct answer is: Yes, it will.

The isNull() function in Alteryx is specifically designed to evaluate whether a given value is null. When applied to a field or expression, it checks for the absence of data, returning a boolean value: true if the value is null, and false if it contains any data. This function is crucial for data preparation and cleansing, as it allows users to identify and handle missing values effectively. In scenarios where data integrity is essential, using isNull() aids in making informed decisions, such as filtering out null values before analysis or performing calculations that could be negatively impacted by missing information. By providing the capability to explicitly check for nulls, the function supports users in creating robust workflows that handle data accurately and efficiently.