Find greatest value for each specific ID
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Hi,
I have a dataset like this:
ID Value 1 5 1 6 1 7 2 23 2 24 2 25
I want to write a ETL formula that creates a third column saying the greatest value for each ID is:
ID Value Greatest 1 5 7 1 6 7 1 7 7 2 23 25 2 24 25 2 25 25
Thank you
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Best Answer
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Or do a group by ID, find the greatest value and join it back on.
1
Answers
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I'd use the Rank and Window Tile
https://domohelp.domo.com/hc/en-us/articles/360042922814-Old-Magic-ETL-Tiles-Rank-and-Window
and then partition by your ID.
2 -
Or do a group by ID, find the greatest value and join it back on.
1 -
+1 @trafalger window function max() would be good except the window doesn't have an unlimited end of window.
so group by would be the best.
Jae Wilson
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