Where is the remaining xml portion? I seem to remember you asking another question about generating xml from sql. But now you want to import it back in?
Can you please explain the whole story. The answers you will be provide when your questions are asked in pieces will vastly differ when asked as a requirement story.
If you are generating from sql to xml then turning around and re-importing it to SQL seems a bit unusual and might not be the best approach. Can you convince us otherwise? Unless this is some school stuff?