>Hi All
>
>Forgive my lack of formatting, every time I want to format code on the UT, I can never find any document listing the tags.
>

hit reply to see the tags i've used for this response.

>SELECT Products.*,Prices.Price ;
>FROM Products
>inner join Prices on Products.ID = Prices.ID ;

change up this part of the query a bit (assuming numeric id field)

>and Prices.ID in ;
>(SELECT Prices.ID,MAX(prices.effective_date) FROM Prices ;
>group by Prices.ID )
>

to

and transform(prices.id)+dtos(prices.effective_date) in ;
  (select transform(prices.id)+dtos(max(prices.effective_date)) ;
    from prices group by prices.id)

and see if that works for you.