xml-dev - RE: XML database

[Huaxin Zhang <hxzhang@cs.ualberta.ca>]

Hi, Michael

I have read almost all those things you just mentioned. However,
it is extremely difficult to save a serie of XML files of one DTD into
relational database. Suppose the DTD is like having a tree like object,
the branch factor of EVERY level is UNKNOWN. Each XML file is like this
tree structure and all of them are to be saved into database. Query of any
of branch of any of the XML trees should be done in real time. 
I see through almost any kind of the database claiming for XML support,
however, I still can't find a demo dealing with the problem of mine. 


On Sun, 8 Oct 2000, Michael Rys wrote:

> There are several ways on how to map XML into relational storage structures.
> There were some research papers published on this (e.g., by Kossman,
> Florescu and others). Also look at SQLServer 2000's edgetable format
> generated by the OpenXML rowset provider as an extreme form on one side of
> the spectrum to represent arbitrary XML documents in relations.
> 
> It all depends on what you want to do with the data and how much schema
> information you have available...
> 
> Best regards
> Michael
> 
> > -----Original Message-----
> > From: Huaxin Zhang [mailto:hxzhang@cs.ualberta.ca]
> > Sent: Sunday, October 08, 2000 12:36 PM
> > Cc: 'xml-dev@lists.xml.org'
> > Subject: XML database
> > 
> > 
> > Perhaps this is an old question, but I still can't find 
> > answer anywhere:
> > 
> > Suppose I have a hierarchy DOM structure, each node may have 
> > undefinite 
> > number of child nodes. How to save this may-be extremely large tree
> > structured XML files into some kind of database rather than a 
> > large chunk
> > in memory or flat file has been a problem for me for a long time.
> > 
> > Would anybody help with me with this? I would prefer 
> > Relational DB, but
> > seems I have to shift to OO-DB, which I know absolutely nothing about.
> > 
> > 
> > 
> > 
>