SCN_TO_TIMESTAMP is a function used to convert the SCN to a readable date format.
SELECT empno, ename, ora_rowscn, scn_to_timestamp(ora_rowscn) FROM emp WHERE ename = 'SMITH' ; EMPNO ENAME ORA_ROWSCN SCN_TO_TIMESTAMP(ORA_ROWSCN) ----- ---------- ---------- ----------------------------- 7369 SMITH 239054665 14/05/12 15:26:07,000000000Note that when the SCN is too old, you could get the following error : ORA-08181: specified number is not a valid system change number