SSQML

SSQML: Standard Structured Query Markup Language
This is an XML dialect that allows any valid SQL statement, clause, expression, predicate, or query to be expressed fully in XML based on an XML compliant schema.
The schema is based on Backus Normal Form (BNF) representations of ANSI-ISO/IEC SQL Standards; ISO/IEC 9075 :2003, ISO/IEC 9075 :2006, ISO/IEC 9075 :2008, ISO/IEC 9075-14 :2013 XML-Related Specifications (SQL/XML)
Does not include support for Embedded SQL Ada, C, COBOL, Fortran, MUMPS, Pascal, or PL/I programs. These may be added in future.
This schema was generated by automation taking the SQL BNFs as input. It was then run through schema validators and manually modified further to result in a valid schema.
The schema was designed such that if an instance document has its tags removed and the order of the content preserved, a valid SQL statement or fragment will be left.

A JAXB library with javadocs that represent ssqml.xsd are checked into SVN