We will now introduce one of the most powerful tools you, as a developer, have at your disposal when creating QlikView documents. We must say upfront that, as with anything, the excessive use of Set Analysis in chart expressions can yield poor performance or low response times. However, we should also know that, when used effectively, it can have a positive impact in both performance and user experience.
In this section, we will cover topics such as when to use Set Analysis, why you should use it, what the correct syntax is, and we will provide common examples and several tips and tricks for maximizing performance as well.
Set Analysis is a great feature in QlikView that lets you, as a developer, take control over what your charts display and allows calculations that wouldn't be possible otherwise, at least not as dynamically. To understand its inner workings, we can compare it to how selections that are made using listboxes work.
With UI selections...