ORA-28155
        user 'string' specified as a proxy is actually a role
        
        
        Cause
        A user specified in an AUDIT operation BY proxy ON BEHALF OF client is actually a role.
        Action
        Execute the statement again with a valid proxy user.
        
     
    
    
        ORA-28155
        user 'string' specified as a proxy is actually a role
        
        
        Cause
        A user specified in an AUDIT operation BY proxy ON BEHALF OF client is actually a role.
        Action
        Execute the statement again with a valid proxy user.
        
     
    
    
        ORA-28155
        user 'string' specified as a proxy is actually a role
        
        
        Cause
        A user specified in an AUDIT operation BY proxy ON BEHALF OF client is actually a role.
        Action
        Execute the statement again with a valid proxy user.