Add a column to existing table and uniquely number them on MS SQL Server

Question

I want to add a column to an existing legacy database and write a procedure by which I can assign each record a different value. Something like ad

Answer 1

Just using an ALTER TABLE should work. Add the column with the proper type and an IDENTITY flag and it should do the trick

Check out this MSDN article http://msdn.microsoft.com/en-us/library/aa275462(SQL.80).aspx on the ALTER TABLE syntax