XML Schema classification help

I need to examine XML documents contained in multiple columns in a database
table with over a million rows and identify each of the different
structures used for the XML data, producing a count if the number of
instances that use each structure.

I thought of using the SAXParser then creating a list of the XML headers in
the order used and storing each unique list and accumulating a count based
on matching an already encountered list object, but I am hoping there is a
less cumbersome approach.

I would appreciate any and all suggestions.

Thanks!
Cliff

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