until now, I have tried WISQL, IB_SQL and IBAdmin.

None of them seems able to answer this simple question:

given a certain table A that I want to drop, which are the tables that have
constraints on A (and that prevent me from dropping the table) ?

Is it difficult to answer such a question ?

All products are ready to tell me the number of dependencies on A (and
their names), but this is only the starting point...

Is there a really good, user friendly administration tool for IB ?

Thank you

Duilio Foschi