I often need random data. For example to use in an example file on this blog, to deliver a customer demo or just to test out something new. As I am probably not the only one with this need, here’s a short and sweet post on how to generate random data for use in QlikView.
I’m currently updating my materials for the upcoming Masters Summit for QlikView in Chicago, and thought I’d share a little bit with you. In my session on data modeling, I explain how you can deal with various types of Slowly Changing Dimensions in QlikView. One of the techniques I explain is using hash functions to detect changes in (historical) records. During the previous events, this always lead to two questions from the audience:
Today I will answer both questions and hopefully give you some insight into hash functions, their usefulness in QlikView and the risks of hash collisions.
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