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.
There are not four JDBC drivers - there are four types of JDBC drivers.
You don't need to know about JDBC for the SCJP exam, so this question doesn't belong in the SCJP forum. I will move it to a more appropriate forum. Next time please post your question in the right forum yourself. [ October 25, 2007: Message edited by: Jesper Young ]