Is there a way to calculate the number of days between to date columns?
Thanks for helping
Hans
Sure, although there is no specialized operator. But you can do this within the data feed. Use the column convert data type operator to convert your date into number. Once a number represents a date it counts the number of milliseconds since 1970 (the way Java or Unix deals with dates).
Now you can do calculations. Of course you need to divide the result to get human readable results, e.g. by converting ms into hours.
Please expect enhancements in this area in the next version of MashZone.