CREATE TABLE TT
(
createTime TIMESTAMP NOT NULL
);
insert into TT values(to_timestamp('21NOV09 10:04:12.032','DDMONYY HH24:MI:SS.FF','nls_date_language=american'));
select * from TT;

select to_char(sysdate,'yy-mm-dd hh24:mi:ss') from dual //显示：08-11-07 13:22:42

select to_date('2005-12-25,13:25:59','yyyy-mm-dd,hh24:mi:ss') from dual //显示：2005-12-25 13:25:59

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Oracle Timestamp

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