Database schema

I am not sure if this is the correct place to ask for comments or advice 
regarding this issue. If not, please advice me.
I need a database that reflects the structure of the standard schema. 
There are lots of these well designed schemas at  
http://xml.coverpages.org/xmlApplications.html (for example, Chemical 
Markup Language <http://xml.coverpages.org/cml.html>). Is there a way 
that I can transform these xml sxhemas to database schema and use an orm 
mapping and/or xml binding to process the objects. I believe this can be 
a lot of help (if possible). I thought about writing an xslt that will 
do this. I would like to hear comments and an advice from someone, if 
this is possible, and what would be the downsides.