Yes, this is the place to ask questions. Make sure you search for the community of the product you are using when asking questions.
You actually are posting on the forums (as Timo mentioned) and in the right place to ask your question (since you asked about the forum/community and not about a particular product or technology).
If you have a technical question, you should first navigate to the right space inside the communyty and then ask the question there.
For example, if you have a problem with Oracle Forms, the the Forms space:
And then ask a question exactly as you did here!
Hope this help, do not doubt in ask if you have any other doubt.
Also, it would help if you change your display name to something meaningful rather than a number, making simpler for everyone to followup a conversation:
Thank you, great help and I changed my name, I guess it takes time to update in my profile.
If you read the information presented by https://community.oracle.com/welcome you should find answers. However, searching for the right product space as suggested does not necessarily help you finding the right forum space, since it obviously depends on your ability to use the right keywords.