Max min date from field file qvd

[qualtz12]

Hello, im new here, im trying to get just 1 max date and min date data  from qvd how i can get that from the script, im trying min date and max date but its take too long because there have like 15-20 million data and return nothing

[Vegar]

The fastest method could depend a bit on your data. I world recommend you to take a look at @rwunderlich  old QlikView Cookbook blog post Fastest method to read max(field) from a qvd