Problem displaying large amounts of data in the chart
I have in my DB about 20.000.000 datapoints. (DB is growing per day 1.000.000) We try to show this points in different linechart. The problem is, if the DB is growing, QLIK dos not show all points in the charts. Till 1.000.000 (50.000 for on chart) it is no problem. If we zoom in all poinst in the chart. But with 5.000.000 we are missing 90% of all points. Is there a solution for this?
The answer is 'summarize'. Aggregate the data to a level that is meaningful and can be shown in the line chart. Nobody can see 20.000.000 individual data points so it makes no sense to try and create a line chart with that amount of data points.
In the overview it would be ok to summarize, but not if we zoom in. This are machine datas and every point is important. We record this data every second.If we can see this points only 1 per minute it is quite usless.
I'd use two separate charts then. Or perhaps even more. Starting with the November2018 release Qlik Sense comes with a Dashboard Bundle of extensions. This includes the Show/Hide container which allows you to show a different object based on conditions. You could use this container to show different charts with different levels of aggregation based on the user selections of for example day, hour, minute and or second.
The from Gysbert mentioned aggregation mustn't mandatory be applied on the script-level else you could try it with a calculated dimension, maybe with something like this in a variable "var":
