Restrict other Tables

Question

Hi to all
i have two tables... employees and admin... In admin rows "users" if they enter the system they can enter all .. but when employees enter the system they can't enter reports.. The prob is ,it is possible to restrict employees , that coudn't enter in report when the employees rows "Users" enter the system.. anyone here know ..?

Answer 1

Yes in oracle fine grained access control is possible. You can restrict to user to see data only. Even you can allow to see only limited column data only by creating the view on few of the table columns and granting the permission on that view to other.
You can give update permission to other. you can give table alter permission.
This can be done through grant commands in oracle.
eg. user A and user B
user A contains table emp
desc emp
emp_nm varchar2(10),
emp_id number(4),
dept_no number(2),
add varchar2(50)
If you don't give any grant on this table emp to B user he will not be able to do any access this table.
By command "Grant select on emp to B' the user b will be able to see the emp table data only.
You can give update,alter table permission to B user as given bellow
Grant update on emp to B
Grant alter on emp to B
Even you can ristict B to see only few columns of emp table creating view
create view test_view as select emp_nm,emp_id from emp;
Then grant select on test_view to B;