Solved! Go to Solution.
Could you grab the 'Amount converted' field by using a new input connecting to your Oracle db? Then join back to the SF stream in Alteryx. An easier solution would be to ask for/figure out the oracle formula and reproduce in Alteryx.
I got this response from a nice guy at Alteryx: Calculated fields will not be readily available in the Query Builder part of the Salesforce Input but if you go to the Custom Query and create a clause to pull in these tables you should be able to pull in the data.
Works.
good to know - thanks!