Even though the Internet has been advocated in the past two years to go to IOE, there is no doubt that the dependence on oracle is not seen, because the bank and the financial hard to leave oracle, I believe that oracle is good to always eat incense.

To learn oracle, you can first buy a basic oracle books, more operation and more practice; intermediate can try to test an OCP (but the registration fee is a little expensive) or something at the same time you can read the English document.

Dry data, now is also the era of big data, you can try to learn other NO SQL database, these databases are also developing rapidly, so more to enhance their competitiveness