>  I agree that for simple sql requests the URL is fine. But if you want
to
>  use the full request capabilities wich are template based you'll have
to 

SQL Server has a concept of a XML-SQL mapping that lets you put XPath as
part of the URI.  Something like:

http://www.server.com/databases/northwind.xsd/customers/orders[qty > 
'5']

I am pretty sure that Oracle does this as well.

I personally think that this idea of an "XML View" is a great way to
webify a relational database and make all of the data universally
addressable.  It is also consistent with RESTful idea of "mediated view"
over a resource.  SQL data thus exposed is accessible from XSLT
document() function, and all of the other GET clients.

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