Complex applicaiton using Sybase/Oracle/MS-SQL Server

Hello all, I'm developing an application that front-ends "restricted" operations for our development staff. (in our environment "restricted" means table truncations, process kills etc.). The application will need to connect to numerous Sybase, Oracle and MS-SQL Server servers. I have a few questions: * The constructor for MySQL takes host, user-id and password as parms. The Sybase and Oracle ones don't. How do I change servers, id's and passwords "on the fly". In other words, first I'll need to connect to server-1, then server-2 and then maybe back to server-1. * The Oracle (and OCI8) .inc files have a disconnect() function that issues a OCILogoff. There is nothing like this in the sybase.inc file and therefore (it appears) that the connections to the Sybase server stay there forever. Should there be a disconnect() for Sybase? * I'd like to use the built-in Perm module, but I can't use simple bits to represent the security (there are too may combinations). I have the security implemented within a table of my database. Can I just "extend" the Auth class and the override the default implementation of the functions with my own? TIA, Frank -- Frank Feingold ffeingold@cnh.com My opinions are only my on own, and not necessarily that of my employer.