Roles, Privileges, ...

Does anybody know where to find information about the way Oracle manages

Roles inside, and in general, it´s security mechanisms (internal views like "x$kzdos", "x$kturd" (where are them created ? ), ..., control files, ...).
Sites in Internet with white papers, tutorials, distribution lists, ...???

Thanks Received on Sat Jul 08 2000 - 00:00:00 CDT