This is not documented because we don't want new development using this kind of storage (which we call "SQL Strorage"). We'd much prefer you to use the standard storage strategy that you get for free when creating classes. If you look at Brendan's 5th (of 3) articles, you'll see a link with the text "Get the Examples here" where you can download some examples (if that works, the link will be here as well).
Again, if you can avoid doing this, I recommend using standard storage.
If you run into any problems or if you have any questions, I strongly suggest you contact the WRC.