Qt to support XML database?

QXmlQuery saved me lots of time when querying XML files. but many times I'll need to query the XML, do some processing and then update the same XML file. I'm so hoping there would be some Qt model that could provide database operations like update, delete ...

anyone knows if there is any Qt or C++ libs I can use to do that?

Do you think the XML hierarchical structure fits into the CRUD language model? I strongely doubt so.

Use any 3rd party library and make it integrated with Qt. some of them are Xqilla, sedna, etc., many are there.