XML data validation against relational tables
I have been scouring the interwebs looking for a way of validating some XML data against the data in an Oracle database table. To date, I have failed to find anything that remotely suggests it is possible.
Has anyone done that before?
As an alternative, I was looking to see how I can access XML instance documents stored in an Oracle database table from within an XSLT that is being processed within the XMLDB. XML registered as resources have a URL/filesystem path that can be used to access them. Do XML instance documents in an Oracle table have something similar?