Greetings Orlace 10.2.0.4, SUN 9 Why is SCN different, shouldn't all of them be same, what am I missing here 19:19:20 TESTDB:SYS> select current_scn, current_timestamp, DBMS_FLASHBACK.GET_SYSTEM_CHANGE_NUMBER() from v$database; CURRENT_SCN CURRENT_TIMESTAMP -------------------- --------------------------------------------------------------------------- DBMS_FLASHBACK.GET_SYSTEM_CHANGE_NUMBER() ----------------------------------------- 10789444571800 18-JAN-10 07.20.38.044102 PM -05:00 10789444571818 1 row selected. Elapsed: 00:00:00.10 19:20:38 TESTDB:SYS> select timestamp_to_scn('18-JAN-10 07.20.38.044102 PM') from dual; TIMESTAMP_TO_SCN('18-JAN-1007.20.38.044102PM') ---------------------------------------------- 10789444571785 -- Regards & Thanks BN