Oracle Application Express (aka: APEX) release 4.2 is installed by default in Oracle Database 12c. When you install Oracle Database 12c Multitenant Architecture, APEX is installed into the multitenant container database by default.
An interesting bit of trivia to impress your friends:
A single multitenant container database can have up to 252 pluggable databases (PDBs).
NoSQL is obviously a hot topic in the enterprise these days, at least at the water cooler if not in the production data center. The momentum is such that despite being seen as a stalwart of relational databases, Oracle too has entered the NoSQL ecosystem with Oracle NoSQL. Naturally, the question of how to use NoSQL databases in Java EE applications (specifically existing Java EE 5 and Java EE 6 applications) comes up all too often.
At the Oracle Open World 2013, I was really pleased to see many Oracle customers sharing their story of accelerating their journey to Self-Service IT or private cloud leveraging the technology solutions from Oracle and partners.