I don't know why you get an error. This code
CREATE TABLE Mytest (id INT, x XML)
(1, CAST('1200' AS XML))
, (2, CAST( '1201' AS XML))
... works just fine on my system.
"I cant stress enough the importance of switching from a sequential files mindset to set-based thinking. After you make the switch, you can spend your time tuning and optimizing your queries instead of maintaining lengthy, poor-performing code."
-- Itzik Ben-Gan 2001