復制代碼 代碼如下:

select to_timestamp('01-10月-08 07.46.41.000000000 上午','dd-MON-yy hh:mi:ss.ff AM')
from dual;

復制代碼 代碼如下:

select cast(to_timestamp('01-10月-08 07.46.41.000000000 上午','dd-MON-yy hh:mi:ss.ff AM') as date) timestamp_to_date
from dual;

復制代碼 代碼如下:

select cast(sysdate as timestamp) date_to_timestamp
from dual;

復制代碼 代碼如下:

select systimestamp from dual;

復制代碼 代碼如下:

select systimestamp-systimestamp from dual;
select sysdate-sysdate from dual;

復制代碼 代碼如下:

select to_char(systimestamp, 'yyyymmdd hh24:mi:ssxff6') FROM dual;

復制代碼 代碼如下:

SELECT sysdate,systimestamp,to_char(systimestamp, 'yyyymmdd hh24:mi:ssxff6') FROM dual;