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

Re: XML: logical and/or physical model?


physical model
Michael Champion wrote:

> As I understand it, it is the job of the RDBMS implementation to  
> perform whatever mapping from the logical to physical world is needed  
> to do this efficiently. [1]  Perhaps one  advantage of XML is that it  
> just blows off this distinction -- it gets a lot of its practical power  
> by 'modeling' relationships as *physical* containment of a set of  
> elements (which of course may be subtrees) inside other elements.

I'd suggest a slightly different focus: the physical model is private while 
the logical model is public.  XML is designed to handle the public, logical 
part so that people can share information without being forced to use the 
same physical models.

Date's speech rants not against XML itself but against XML encroaching on 
the physical side.  Granted, he doesn't like SQL much either, but he might 
be right about XML, unless object-oriented and XML databases are performing 
and scaling a lot better than they were the last time I looked.

I agree with the advantages Michael lists for XML outside the database.


All the best,


David

PURCHASE STYLUS STUDIO ONLINE TODAY!

Purchasing Stylus Studio from our online shop is Easy, Secure and Value Priced!

Buy Stylus Studio Now

Download The World's Best XML IDE!

Accelerate XML development with our award-winning XML IDE - Download a free trial today!

Don't miss another message! Subscribe to this list today.
Email
First Name
Last Name
Company
Subscribe in XML format
RSS 2.0
Atom 0.3
 

Stylus Studio has published XML-DEV in RSS and ATOM formats, enabling users to easily subcribe to the list from their preferred news reader application.


Stylus Studio Sponsored Links are added links designed to provide related and additional information to the visitors of this website. they were not included by the author in the initial post. To view the content without the Sponsor Links please click here.

Site Map | Privacy Policy | Terms of Use | Trademarks
Free Stylus Studio XML Training:
W3C Member
Stylus Studio® and DataDirect XQuery ™are products from DataDirect Technologies, is a registered trademark of Progress Software Corporation, in the U.S. and other countries. © 2004-2013 All Rights Reserved.