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.
Client or Server, Windows or Linux/UNIX? On WIndows CLient, you can always go to START-PROGRAMS-ORACLE and look at one of the applications that are loaded by Oracle and check the Help menu of that program? Or something just like that. or command line sqlplus, that must have the Oracle version when you first log in.