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Oracle and DB2 have had this functionality since I was in college, see http://www.25hoursaday.com/StoringAndQueryingXML.html. SQL Server 2005 will have this functionality when it is released next year. -- PITHY WORDS OF WISDOM If you don't change your direction, you may end up where you were headed. ________________________________ From: Owen Walcher [mailto:xpriori@o...] Sent: Wed 8/25/2004 8:26 AM To: Ken North; xml-dev@l... Subject: Re: are native XML databases needed? > > the fact is: if you have to round-trip your XML to a client in order to query, > validate and or execute from it > > Are you suggesting that for retrieving XML an SQL server must pass its XML data > to the client, which executes the queries and validates documents -- as opposed > to the SQL server executing queries over XML data and validating documents? If a relational database has the capabilities to store XML documents without knowing the structure apriori, and lets you query (using XPATH and/or Xquery - not SQL), insert, update and delete nodes, subtrees or entire XML documents within and across all these XML documents stored in the DB, then I would put to you that you are not using a relational database, but what Cache calls a post-relational database. Do any of the big 3 (Oracle, DB2, MS SQL-Server) do that yet? Unless Yukon functionality has changed, it is the only one I am aware of that will (and that is not released yet). Please correct me if I am wrong. Relational databases did the same thing to Object databases in the 90's (although I think Objectstore still claims the worlds largest database :), and will eventually get there with XML, but by then they really will be much more than a relational database. Owen ----------------------------------------------------------------- The xml-dev list is sponsored by XML.org <http://www.xml.org>, an initiative of OASIS <http://www.oasis-open.org> The list archives are at http://lists.xml.org/archives/xml-dev/ To subscribe or unsubscribe from this list use the subscription manager: <http://www.oasis-open.org/mlmanage/index.php>
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