I think DB (relational or xml) is the right approach - I don't see other way to randomly access a large XML file.

Still, if what you have is a list of changes and you want to apply them to the large XML (I'm not sure I understand well what your validation works like), you may use XML::Twig to parse the file piece by piece, detect the elements you want to change, do the changes, and flush the processed pieces.

In reply to Re: updating big XML files by pjotrik
in thread updating big XML files by dHarry

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