Oracle have released v2.1.0 beta of their XML SQL Utility, available from the Oracle Technet web site, adding initial support for XML Schemas.

New features in this release include:

• SAX2 output from any SQL query for handling XML query output of arbitrary size in custom programs or SAX filters.
• Full support for any JDBC driver
• Initial XML Schema support, allowing you to produce inline XML Schema for the XML result of any SQL query
• New support for retrieving data as XML attributes instead of elements

Announcing the new release, Oracle XML evangelist Steve Muench gave an example of the retrieve-as-attribute functionality:

SELECT FOO as "@foo", BAR as "bar" FROM BAZ
produces:
<rowset>
  <row foo="foovalue">
    <bar>barvalue</bar>
  </row>
</rowset>