This week's book giveaway is in the OCAJP 8 forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide and have Edward Finegan & Robert Liguori on-line! See this thread for details.
Learn about SQL first, there are good 10-minute guides to SQL out there. Then learn about java if you haven't done so all ready. If you're really good at both, JDBC is pretty straight-forward for beginner to immediate topics.