scn 与 timestamp的相互转换

SQL> select * from v$version;

BANNER
--------------------------------------------------------------------------------
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - Production
PL/SQL Release 11.2.0.1.0 - Production
CORE    11.2.0.1.0      Production
TNS for Linux: Version 11.2.0.1.0 - Production
NLSRTL Version 11.2.0.1.0 - Production

 

SQL> select timestamp_to_scn(sysdate) from dual;

TIMESTAMP_TO_SCN(SYSDATE)
-------------------------
                  1061893

SQL> select scn_to_timestamp(1061893) from dual;

SCN_TO_TIMESTAMP(1061893)
---------------------------------------------------------------------------
05-JAN-13 11.23.36.000000000 AM

SQL>

 

 

oracle online doc ：sql reference

1》timestamp to scn

http://docs.oracle.com/cd/B19306_01/server.102/b14200/functions176.htm

2》scn to timestamp

http://docs.oracle.com/cd/B19306_01/server.102/b14200/functions142.htm