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
Or do a group by ID, find the greatest value and join it back on.
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.
+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.