How can I specify the "linkage" between two XMLType columns?

Hello all,
I'd like to know whether I can do the following in Oracle 10g R2. Table A has a column C1 of XMLType; table B has a column C2 of XMLType; and C2 has an element links to C1's content (the root element) - not a copy of that.
Thanks
Cy

In theory an DBURI can be used, making use of the DBURIServlet which is part of the XML DB Infrastructure
/oradb/SCHEMA/TABLE[predicate]... I'm not sure I'd recommend this approach.
XLink, XInclude and XPointer are the right techniques to do this. As I in my earlier post we don't do anyhting special to enforce or resolve these techniques in the current production product. You can store documents that contain these kind of links in the database. If you organize your content approriately in the XML DB repository you can resolve these links programatically today.
We will be doing some interesting work to support all of these standards to a greater or less extent in a future release of the database. To use the repository to manage these links it will be necessary to create a resource that allows URL based access to each document that you want to link to. You can create links to existing content by obtaining a REF to the XMLType and then foldering the REF under the required URL.
Note that this technique cannot be used to refer to XMLType stored in columns of XMLType in an relational table, only to rows of XMLType in an XMLType table.

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