Advice needed regarding learning path

Friends, I have completed my OCP certification in 11g recently. I want to do OCM in 11g in long run. I need to learn skill-sets named  RAC and Performance tuning before preparing for OCM. So what learning can  I do next after OCP- RAC or Performance tuning ,any inputs will be highly appreciated !!

921871 wrote:
Thanks for your suggestions. I am already working as a production DBA for last 1.5 years for a organization. My project has no scope of RAC and performance tuning as of now. But I am very eager to learn them. I am confused what I need to start learning first, hence asked. In the long run, my aim is to gain practical exposure, experience along with OCM certification.
I am confused what I need to start learning first
Too many people seem to think learning is linear.  Yes, there are some things you have to learn before you can learn some other things.  But "learning" Oracle never ends.  Pick a subject area (RAC, or SQL, or Performance Tuning, or .. or ..).  Doesn't matter which.  Spend enough time with it to get a fundamental, working understanding of it.  Then do the same with another subject while at the same time keep your eyes open for adding to your understanding of the first subject.  "Rinse and repeat".  Spend time on this and one or two other high-quality oracle forums.  Participate and be willing to take your lumps and learn when you offer advice that is shot down.   Build yourself a virtual test system (Opinion | Ed Stevens, DBA) and then break it.  And then fix it using only the facilities you would have available to you in the real world.

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    Thanks very much if you've taken the time to read through this tedious stuff !

    Flash Professional started as an animation tool and was expanded with a programming language that became ActionScript (now ActionScript 3.0). Content creators began using Flash to develop applications rather than just animation, so a lot of developer-centric and application-centric functionality was added to Flash, including pre-built user interface components (written in ActionScript). All that functionality and those components are still available in Flash Pro today. However, many developers who came from a traditional programming background had trouble getting into Flash Pro because it is really an animation design tool -- so it uses a timeline, layers, visual drawing canvas, and it required some figuring out to learn how to structure an application in that type of tool.
    In response to this, Macromedia (now Adobe of course) created Flex. Flex uses ActionScript just like Flash Pro. Flex also includes numerous user interface controls, written in ActionScript. Flex also adds advanced, flexible layout control and many utilities for common programming tasks like loading data from or sending data to a server, formatting values, validating user input, and more. With Flex, you can define your user interface using an XML markup language (MXML); the compiler then turns the MXML into ActionScript code before turning it into your compiled application. As far as tooling, an eclipse-based IDE called Flex Builder was created that gives you a code editor, a workable but not designer-oriented design view, and other developer tools like debugging and profiling. (Note that Flex Builder has been renamed to Flash Builder for the next release, which is currently in public beta.)
    So to generalize, Flash Pro favors a more visual design and animation type of working style, whereas Flex favors a more text-based, code-centric working style. (But that's just a generalization -- many people, especially people who "grew up" with Flash before Flex, still prefer Flash Pro even though they're heavy coders.)
    Also, if you want to write everything in code with no pre-drawn visuals (i.e. Flash Pro) and without using MXML or Flex components, you can create your application entirely in ActionScript code. Flex Builder supports ActionScript-only projects for that purpose.
    Here are a few links for getting started with Flex, which I would personally recommend if you haven't used either one and you're building something that's more "application" focused rather than media or animation focused:
    Flex "Quick Starts" -- short articles focused on specific tasks in Flex
    Flex "Getting Started Experience" -- designed as a set of training courses, intended to take 12+ hours to complete (but you can skip around of course)
    "Flex in a week" video training -- a free 5-day video tutorial series on Flex
    Flex Developer Center "Learning Paths"
    As a side note, the link you included actually goes to the JavaScript version of the documentation, which is what you would want if you are going to use HTML/Ajax to build your app. However, if you're wanting to use Flex you would want to use the Flex version of the documentation:
    http://livedocs.adobe.com/flex/3/langref/mx/controls/HTML.html
    http://livedocs.adobe.com/flex/3/langref/flash/html/HTMLLoader.html
    And if you're wanting to use Flash, you can use the Flash Pro version of the documentation:
    http://help.adobe.com/en_US/AS3LCR/Flash_10.0/flash/html/HTMLLoader.html
    Yes, it's somewhat confusing and overwhelming. We're definitely working on improving things in that regard.

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