Hi Army, thanks for your quick reply and your advices. About the implementation ID, i think it should be the property of the XML table column. I mean when you create a table with XML type column, you should (some way) specify the storahe type you want to use. What do you think about it? (i can see maybe some problem when querying 2 differnt XML type at one select, but maybe it could be done).
Thanks again, regards Petr
