Another new feature of APEXBlogs v2 will be the synchronisation of Tweets with the hashtags of #apexblogs and/or #orclapex.
from xmltable(xmlnamespaces('http://www.w3.org/2005/Atom' as "AE"), '//AE:entry'
columns title varchar2(250) path '/AE:entry/AE:title/text()'
The above query would be easiest, but it won't always work. It depends the version of your database, your security settings and your environment.