兩個Date類型欄位:START_DATE,END_DATE,計算這兩個日期的時間差(分别以天,小時,分鍾,秒,毫秒):天:ROUND(TO_NUMBER(END_DATE - START_DATE))小時:ROUND(TO_NUMBER(END_DATE - START_DATE) * 24)分鍾:ROUND(TO ...
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