1) unique_val is the primary key;
2)Here goes(note that I was using an example- I query many fields)
SELECT henrybak.Value, henrybak.unique_val, [Value] & [ID] AS Expr1, DLookUp([henrybak].[Value],"henrybak",'unique_val') AS [Money], henrybak.TRANID_TRN, henrybak.ID, henrybak.ACCRBAS...