The database schema is mostly maintained by CERN (Chris Roderick); there are a few additional GSI tables, views and PL/SQL packages. The database schema sources are located in the CERN repository (svn+ssh://svn.cern.ch/reps/acc-dm) and emails are generated whenever some change (check-in) was performed on that sources.
-- JuttaFitzek - 13 Oct 2010