SQL & PL/SQL

Hi all;

I know timestamp data types has up to 9 precison after seconds.(Ref: http://download-uk.oracle.com/docs/cd/B19306_01/server.102/b14200/sql_elements001.htm)

SQL> SELECT systimestamp FROM dual;

SYSTIMESTAMP
-------------------------------------------------
02-FEB-07 02.26.51.207000 PM +02:00

SQL> 

BUt above query has 6(default for timestamp precision) digits and after 3 digits they become zero.(207000).

What i need is to display timestamp exactly 9 digits:

SQL> SELECT systimestamp FROM dual;

SYSTIMESTAMP
-------------------------------------------------
02-FEB-07 02.26.51.207569782 PM +02:00

SQL> 

Are there any ALTER SESSION command or any others to achieve this situation?

Thanks, Regards...