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Re: Processing large XML Documents [> 50MB]

Subject: Re: Processing large XML Documents [> 50MB]
From: Ramkumar Menon <ramkumar.menon@xxxxxxxxx>
Date: Thu, 11 Mar 2010 12:37:26 -0800
Re:  Processing large XML Documents [> 50MB]
Thanks everyone.

On Wed, Feb 24, 2010 at 5:20 AM, Mike Odling-Smee
<mike.odlingsmee@xxxxxxxxxxxxxx> wrote:
>>> a) assemble around 30-40 XML documents [each with a common
>>> header and its own lines] into one single XML document, with
>>> the common header and all the lines
>>> b) Update the assembled document in specific locations
>>> c) generate multiple XML document fragments from the huge XML
>>> document based on query criteria. Each XML frgment is created
>>> by mapping specific fields in the big document. Each document
>>> is created for a specific key element value in the huge document.
>>>
>
> You could take a multi-pass approach which would not be too dissimilar
> to what you do currently:
>
> First pass
> A variation on step a) Create a single (more lightweight) XML file
> that only contains the necessary meta-data and resolved relationships
> from your 30-40 XML documents (equivalent to a database view if you
> like).
> b) As before but only briefly load XML that is pertinent to the update
> using the results from step a) as a map
> c) Again as before, but only load the XML that is required or
> alternatively just use the more lightweight XML created in step a) if
> it contains all the information you need
>
> Whether or not this approach will work for you depends on your
> detailed requirements.
>
> Alternatively (if you have not already tried it) you might want to try
> to optimise the performance of your existing XSLT - for instance by
> using xsl:key.
>
> Kind regards,
>
> Michael
> www.xml-solutions.com
>
>



--
Shift to the left, shift to the right!
Pop up, push down, byte, byte, byte!

-Ramkumar Menon
 A typical Macroprocessor

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