This week's book giveaway is in the OCPJP forum. We're giving away four copies of OCA/OCP Java SE 7 Programmer I & II Study Guide and have Kathy Sierra & Bert Bates on-line! See this thread for details.
You want to use a BLOB (which stands for Binary Large Object). Do a search in this forum for 'BLOB Oracle' and you'll find lots of discussion of how to do this (though you may want to skip some of the older discussions).