Mastering Qlik Sense
by Ralf Becher, Karl Pover, Jason Michaelides, Dilyana Ivanova, David Alcobero, Martin Mahler, Juan Ignacio Vitantonio
The calculation engine
The calculation engine, as its name refers to, is responsible for all calculations performed in the Qlik Sense applications.
Qlik Sense is an on-demand calculation engine, meaning everything is calculated on the fly. This means that charts will get calculated or recalculated whenever the user makes selections.
One thing that is important to clarify is the fact that charts are not always recalculated. If a selection throws, as a result, a calculation that had previously been calculated, the Qlik Sense engine will get the calculated result from the cache instead of having to calculate everything again. This, as you can image, improves response speed enormously. When selections are repetitive, you will see an improvement ...
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