【SQL的學習筆記】DATEDIFF函數：日期計算之相差天數計算

原創 shenjie_xsj 2020-06-18 23:17

調用方式

說明：本筆記僅適用於SQL Server數據庫
DATEDIFF(參數一,參數二,參數三)

傳入參數

參數一：指定求差類型，當傳入DAY時，返回結果代表相差的天數
參數二：兩個日期值中的較大值
參數三：兩個日期值中的較小值

返回值

返回指定求差類型的差值

調用示例

-- 返回當前日期與表Table1所存儲的CreateTime之間相差的天數
DATEDIFF(DAY,GETDATE(),Table1.CreateTime)
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