I am seeking help on this issue.

When I installed Oracle 10g on Solaris 9 sparc box, I created user oracle and assigned oracle user to primary group Oinstall and second group dba. Then installation went successful. After that, I created another user ccmm and assigned ccmm to dba group. Then I created some UNIX scripts and SQL scripts stored on system. When I log into server as ccmm user and tried to connect to Oracle database, it failed. If I log in as oracle user and tried to connect to Oracle database, everything runs fine. My purpose is to log in as ccmm user and connect to Oracle database or start Oracle utilities from there. So where is the problem for ccmm user settings? How can I make ccmm user as Oracle database user on UNIX machine? Thanks in advance.