Topic: Tree with reports
There is a database and it is necessary to deduce hierarchy in the form of a tree and the report on each element of a tree. For an example: at the left at me a tree at pushing a tree element, the report on the right should be deduced. If I could construct a tree to fasten reports it is impossible (the beginner in APEX).
There can be someone knows, where it is possible to look how to implement or at least something similar. Optionally how I outlined, but at least something similar.