ORACLE中date和timestamp的相互轉化

date轉爲timstamp date轉爲timstam可以函數to_timestamp的方式來轉化： SELECT to_timestamp('2018-06-19 12:10:10.1','yyyy-mm-dd hh24:mi:ss.ff') FROM dual; timestamp轉化爲date 1, timestamp+0 select Systimestamp+0 FROM DUAL;

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