Returns True if the argument contains valid data, and False if the argument is Null (does not contain valid data).
argument (required) Any argument can be provided. The function can analyze one argument at a time. IsNotNull is often applied to a column of data to test for non-Null values.
- Function will return True for rows where sales data exists and False for rows where there is no data.
More About Logical Functions
Logical functions test for True/False values. They evaluate a condition, and return a value based on whether the condition is True or False.