SELECT Member.FName, Member.LName, Member.Numero ; > FROM Member ; > WHERE Member.Numero IN ( SELECT NoMember FROM Reservation) > OR Member.Numero IN ( SELECT NoMember FROM Other) >I never use this syntax probably because I think it's not as intuitive as a UNION. IAC, that's a workaround, such as I did with GO TOP, which is a real mystery in regards to the original problem. :)