SCN

Hi experts,

    How to know the SCN number at specific point in time.  We can get the current SCN from v$database view, but I need current_scn at specific second 

Example:

SQL> select current_scn from v$database;

CURRENT_SCN

-----------

   10279050

SQL> /

CURRENT_SCN

-----------

   10279072

SQL> /

CURRENT_SCN

-----------

   10279073

CURRENT_SCN is getting changed every time.   I want to see all the SCN and want to know what was the current_scn at what time