I created a issue ( http://code.google.com/p/jiffy-web/issues/detail?id=13
) and then I discovered this group.
Like I describe in the issue, I can't install jiffy-web on Oracle XE
The main problem is creation of trigger and later, I got this error :
ORA-01658: unable to create INITIAL extent for segment in tablespace
Have you some hints for me to complete the install ?