[英]how to convert milliseconds,seconds,minutes,hours into days in sql server 2005?
[英]SQL Convert Milliseconds to Days, Hours, Minutes
我需要將毫秒值85605304.3587轉換為0d 18h 21m的值。 不知道如何開始,有沒有類似於SQL中的TimeSpan,就像在C#中一樣?
您可以明確地進行計算。 我覺得是這樣的:
select floor(msvalue / (1000 * 60 * 60 * 24)) as days,
floor(msvalue / (1000 * 60 * 60)) % 24 as hours,
floor(msvalue / (1000 * 60)) % 60 as minutes
注意:某些數據庫使用mod
而不是%
。
使用原生日期和時間功能 ,可能:
SELECT
AsDateTime = DATEADD(MILLISECOND, 85605304, 0)
, AsDateTime2 = DATEADD(NANOSECOND, 7 * 100, DATEADD(MICROSECOND, 358, DATEADD(MILLISECOND, 85605304, CONVERT(datetime2, CONVERT(datetime, 0)))))
-- Incorrect datetime2 approach I initially did, has some precision loss, probably due to datetime's millisecond issue with 0's, 3's, and 7.'s
--SELECT DontDoThis = DATEADD(NANOSECOND, 7 * 100, DATEADD(MICROSECOND, 358, CONVERT(datetime2, DATEADD(MILLISECOND, 85605304, 0))))
datetime
僅覆蓋超過秒的3位數,而datetime2
將保持7位數。 也許其他方式可以提供類似日期的對象,我不知道。
在MS SQL SERVER中,您可以使用下一個代碼:
with cte as (
select cast(85605304.3587 as int) / 1000 / 60 as [min]
), cte2 as (
select
cast([min] % 60 as varchar(max)) as minutes,
cast(([min] / 60) % 24 as varchar(max)) as hours,
cast([min] / (60 * 24) as varchar(max)) as days
from cte
)
select concat(days, 'd ', hours, 'h ', minutes, 'm') as tm
from cte2
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