SQL Server 2008: The columns in table do not match an existing primary key or unique constraint

Question

I need to make some changes to a SQL Server 2008 database.

This requires the creation of a new table, and inserting a foreign key in the new table that references t

Answer 1

This issue caught me out, I was adding the relationship on the wrong table. So if you're trying to add a relationship in table A to table B, try adding the relationship in table B to table A.