Which one in the first step do you recommend?My recommendation is 1Z0-051. I've created two articles that compare the three available SQL tests and explain why:
Is there any specific documentation DVD for taking these examsI'm not sure what you're going for here. All of the Oracle documentation is online as you mention. Oracle Education has course material available for 051 and 052 (in class, online, and self-study) but none of it is available for free (nor is it cheap). As for third-party study materials, there are a good number available for both tests. A search on Amazon.com by the test number will return half a dozen books between the two tests.
but a more guided training would be better to take an on-line course or even self study guide and go for the exam.
And as for documentation on exam preraration, I know which will we your reccomendation on Amazon, the reddish the better???Not necessarily. Understand that mine is a Study Guide. It's much more condensed than any of the other books there. If you know Oracle SQL, have been working with it for some time and just need to brush up on the particular aspects that will be on the test, I'd recommend it as a primary source.