How to reference XMLTYPE Coloumns in Oracle Database with RDF

Hi there!
First i want to say you do a great job out there!
And here is my Question:
I stored XML Documents inside the Database as XMLTYPE Columns in Tables. Now i want to reference parts of these Documents with RDF. That means, there is a node in the document stored in a table and want to add RDF metadata for this node. What's the best way to do that? Use the Oracle virtual file system, to publish the documents and do the references as a URL? Maybe i want to add RDF Data to specific Tables, is there a way to do that? Which possibilities exists to link with RDF inside a Database?
Any Ideas are welcome! :)
Best regards,
Axel

Hi Axel,
Thanks for the compliments!
RDF data can be linked with data in the database by creating a column in a table that is of type SDO_RDF_TRIPLE_S. This is the triple type, and columns in a table can be defined to be of that type. This column can be added to a table that has other data, or in a new table that is linked to other tables, perhaps using a foreign key. A <subject, predicate, object> triple can be inserted into this triple column (the triple is eventually stored in the internal semantic store, but this is transparent to the user).
If the node in the XML document has multiple triples associated with it, perhaps a table with an SDO_RDF_TRIPLE_S column and a column to link each row to the table containing the XMLTYPE column can be created. An additional column can help identify a specific node in the XML document. I presume the application can create URLs that might be necessary for the RDF metadata.
Let me know if this does not answer your question.
Melli

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<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by mheibel([email protected]):
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