SQL> select to_char(sysdate,'yyyy-MM-dd-hh-mm-ss') from dual; TO_CHAR(SYSDATE,'YY ------------------- 2011-12-28-08-12-12 SQL> select to_char(current_timestamp,'yyyy-MM-dd-hh-mm-ss') from dual; TO_CHAR(CURRENT_TIM ------------------- 2011-12-28-08-12-47