[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message]

Re: are native XML databases needed?

• To: "Ken North" <kennorth@s...>, <xml-dev@l...>
• Subject: Re: are native XML databases needed?
• From: "Owen Walcher" <xpriori@o...>
• Date: Wed, 25 Aug 2004 09:26:02 -0600
• References: <1E0CC447E59C974CA5C7160D2A2854EC097E87@S...> <000101c48a39$f6046a70$d001a8c0@Hagrid> <412BF69E.DEA3B298@b...> <003901c48a50$fef3e4f0$d001a8c0@Hagrid> <000c01c48a84$27710150$1601a8c0@DURANTE>

> > 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

• Follow-Ups:
  • Re: are native XML databases needed?
    • From: "Ken North" <kennorth@s...>

• References:
  • RE: Are people really using Identity constraints specif ied in XML schema?
    • From: "Hunsberger, Peter" <Peter.Hunsberger@S...>
  • are native XML databases needed?
    • From: "Owen Walcher" <xpriori@o...>
  • Re: are native XML databases needed?
    • From: "Chiusano Joseph" <chiusano_joseph@b...>
  • Re: are native XML databases needed?
    • From: "Owen Walcher" <xpriori@o...>
  • Re: are native XML databases needed?
    • From: "Ken North" <kennorth@s...>

• Prev by Date: [ANN] XForms Links, Links, Links - Free Books And Much More
• Next by Date: RE: are native XML databases needed?
• Previous by thread: Re: are native XML databases needed?
• Next by thread: Re: are native XML databases needed?
• Index(es):
  • Date
  • Thread