Getting away from Oracle APEX, recommendations for PostgreSQL?

[Dirk Krautschick <Dirk.Krautschick@xxxxxxxxxxxx>]

Hi all,
 
if someone wants to get away from developing Oracle APEX to become more flexible
with the related database system (yes, rebuilding everything is the case here)....what 
kind of web technology or programming language etc. would you recommend in case of 
using PostgreSQL? Or is there anything similar for an option? 

Thanks and best regards
 
Dirk