OWM and Training

Question

Is there any OWM Oracle University training (couldn't find any)?
I ask this because the only "official" training I have had is what is tacked onto the Oracle Spatial class, but I really need something more for both myself (lead db developer) and our head DBA.
OWM is a great capability, and I need versioned tables to support business processes, but I cringe anytime I have to make a modification to the table or a trigger on the production system due to the complexity of OWM. Although IMHO it would be much better if Oracle would make the investment to make the implementation much more transparent (a core feature) to the developer and DBA, so that when a table is versioned it still can be modified, exported/imported, etc. without any or much special work.
But since that is not the case, we really need to get an in-depth understanding on what exactly the mechanisms are in the metadata, created sys objects, etc. so that if we run into problems we can address them directly, much as we have done with Spatial (thanks to good training and 3rd party books in addition to the Oracle docs).
Something beyond the basic tutorials is needed, urgently.

Answer 1

Bill,
The largest question is training, and how to obtain it to get an in-depth understanding of the mechanics behind OWM (much as we understand with Spatial).
An example on why training is important can be shown in a recent problem one of our DBAs encountered. To best mirror our production systems so that the customer can test issues on the test system with production data, we did a full backup (minus a few schemas such as one for Toad). We then restored this on a new database instance with minimal problems (other than initially sorting out some missing sys owned, OWM created objects). But then we found that although we could create and open a workspace, commit data, and roll it up to a parent workspace without errors, the data would disappear upon reopening the parent workspace (only in test, not in the original production version).
Now I know it's probably due to some subtle issue in the metadata, or related to the OWM sys objects, but until we fully gain an understanding of all the relationships, I wasn't sure what to do to correct the situation (other than call support). Now we are not against using support, but we would just rather fully understand why something isn't working (with training). In spatial, we know what the metadata items do, so if something isn't quite right we can quickly track down the cause of the problem, and correct it.
Please understand, I'm just trying to become more enlightened on what to do when X happens. FAQs, best practices, etc. are a great help, they just seem to be quite sparse for OWM. I was looking for more training for our folks, but couldn't find any.
Thanks for the reply, we'll be in contact.
Bryan