Ever got an error like 'could not save table changes that require the recreation of the table' when you tried to create a new primary-key or not-null constraint on a table using SQL Management Studio 2008?
Well, I got this error on my first steps on migrating to SQL2008.
The solution to this problem is pretty simple: an option setting in the 2008 Management Studio has to be changed, as such changes are blocked by the studio.
Just open the Management Studio, go to the Extra->Options Menu, Click on "Designer" and deaktivate the settings as show in the screenshot.
(
via
http://www.dotnetnukeblog.de/SQL+Server+2008+Modifizieren+Einer+Tabelle.aspx)