This week's book giveaway is in the General Computing forum. We're giving away four copies of Arduino in Action and have Martin Evans, Joshua Noble, and Jordan Hochenbaum on-line! See this thread for details.
I am confused between these two things.. JDO and JPA. Why two different framework for the same thing ? What level of understanding I need to have on JDO for the exam.
I already have read JPA. Do, I need to study JDO as well ? Or should I just remember the few differences like JPA is only for RDBMS, JDO supports many different databases; JDO more mature than JPA. ( I know only these two :-( )