Can I have a foreign key referencing a column in a view in SQL Server?

Question

In SQL Server 2008 and given

TableA(A_ID, A_Data)
TableB(B_ID, B_Data)
ViewC(A_or_B_ID, A_or_B_Data)

is it possible to define TableZ(

Answer 1

Sorry, you cannot FK to a view in SQL Server.