Thanks for the reply,what i intend to know is i have one database server and one application server .So there is one user group which will do all insertion ,updation ,delete and others are application users who will only view the data through a application ,and another is backup operators .
So i want to know what all permissions on the oracle home on client machine these users needs to have,i.e full control or read write execute kind of things and what abt the oracle stuff on the server ,every one full control or some other stuff.
I do'nt know whether i am asking a silly question.