I'have juste discoverd that Compiere has released R2.6.0a including Oracle XE !
Is derby's (or any JDBC) port always on the road !?
Any JDBC will not work, as we enforce special SQL functions as per Database. XE should work fine. Derby and / or Postgres are on the run. Derby was / is ready more than 90 %, but we have some major problems with some functions which were promissed from the Derby Team, so hopefully they will get solved soon. Postgres is again in dicussion in combination with enterprise db.