I absolutely agree with Lowell but let me give you another hint that will save much in the area of agony in the future....
Don't use anything more than the 2 part naming convention in any of your code. Use only the 2 part naming convention. If a table is in a different database, then create a synonym that's naming using 2 part naming to point to the object in the other database.
Why? First, it hurts nothing for performance. Second, it makes programming easier. Third, you won't have to change any of your code if you decide to move a table to different database or even rename the whole database. Instead you only need to change the synonym(s).
--Jeff Moden
Change is inevitable... Change for the better is not.