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RE: storing XML files
- From: Dave Simmonds <daves@t...>
- To: Soumitra Sengupta <soumitra@b...>, Dave Simmonds <daves@t...>
- Date: Wed, 10 Oct 2001 12:26:37 -0600
I
would certainly appriciate any reading on this topic.
Repeating elements will cause issues with the crosstab/pivot type query
if I want to create a 1 row per document type view of the data.
But database structure will still support storing this type of
data.
You
are correct in that the current documents that I'm looking at are relatively
simple. I'll have to look into the other problem areas that you mention
with ID and IDREFs and mixed content.
The
question I would ask though is this - Can an XPath correctly and uniquely
identify all the critical pieces of any XML document? If it can then the
basis of my solution is still valid.
Dave
Hi Dave:
It
may work for your particular application and the types of document you are
getting but you will quickly run into problems with recursive elements, mixed
content, ID and IDREFs, not to mention a query language and other adjacent
standards. In the gneral case ii would be advisable to use a XML
database (IMHO).
Mike has pointed you to couple of open source initiatives that you can look
at if you need more ideas. I have come across at least 2 academic papers
dealing with this, one from a Korean lab. and another from a U.S.
University. I will look them up and forward them to you.
Regards,
Soumitra
In solving this problem I've come up
with a base of approximantly 5 tables that are needed. In order to
accomplish this task - each XML document must be able to validate against a
Schema (or DTD) and the db must support crosstab/pivot type queries.
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