Different database, different data, but same end result: use alias to calculate results. This works but it's probably ugly ``` select EG, GPVBW/1000000-WG as Diff from ( select *, TID*0.003*250 as EG from CalculateGrowth ) ``` But then I want to do another calculation based in the `Diff` column above: Diff//0.003/250/750*60 as Delay Do I need another sub-select or can it be within the existing one?