Hi everyone,



I'm trying to get my hands around a new concept for me.... that is, having a

data-layer that can consume a language - independant query and transform

that query into a database specific query.  I'm looking to abstract the

queries so they can be applied to anything from an xml document to an Oracle

database.



Has anyone done anything like this before and if so, can you point me in a

direction to learn more about how to do this.



I understand that xPath and XML Query Language are some w3c standards in the

make for this type of thing, however I'm not very keen on translating the

w3c standards document into something usable... some of it is greek to me :)



Again, any help would be greatly appreciated.



Chris Kersey