Add a column with a default value to an existing table in SQL Server

Question

How can I add a column with a default value to an existing table in SQL Server 2000 / SQL Server 2005?

Answer 1

SQL Server + Alter Table + Add Column + Default Value uniqueidentifier

ALTER TABLE Product 
ADD ReferenceID uniqueidentifier not null 
default (cast(cast(0 as binary) as uniqueidentifier))