ms accuracy from Oracle

I can get the time from oracle by doing a :

Select to_char( SYSDATE, 'HH24:MI:SS:MM' ) SYSTEM_TIME from dual;

but this only gives me seconds.

I would like to do some benchmarks on SQL statements using millisecond precision, any ideas?

thanks
Joel Received on Wed Apr 02 1997 - 00:00:00 CST