How would I go about ranking values in direct query mode. The DAX function RANK does not seem to work.
Any help appreciated
Solved! Go to Solution.
I faced this a couple of months ago
two ways to do this, you can create a Measure using rankx
this means that when you slice your data, your rankings get recalculated
another option is to do the rank within the SQL select query
this means your ranking remains the same regardless of how you slice your data
this will show you how to do it the SQL way: http://www.sqlteam.com/forums/topic.asp?TOPIC_ID=109028
Thank you so much for your reply. I tried the RANKX way but I got an error saying the RankX function is not supported under direct query model. How did you solve it? By rankx or SQL ?
That's a right way to do it. However, all DAX functions are only allowed to apply in measures. I want to add each serial number 's rank as a new column as by comparing their timestamp and then focus on test data from the same rank, like how many failures do I got on the first run. I don't really think I could handle that with one single measure.
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