Just released initial release of dmlquery tool, for doing DML queries on SQL database (or anything perl DBI abstraction layer can handle) via formated XML files.
Very useful for XML pipelining. With this and XML/XSLT transformations you can do very powerful thinks, like whole ETL tools for extracting data from one source (database, web…), transform it (using XSLT) and load to database (using dmlquery).
Hope it will help you.Click here for more http://devel.dob.sk/dmlquery/.
Note: Right now it has weak documentation, will try to improve it soon.