如何在SQL Server中將分鐘數轉換爲時間間隔？

Question

我在我的appointments表中有duration類型的time(7)列。

我知道如何使用

select durationMinutes = DateDiff(n, a.StartOn, a.EndOn) 
from appointments a 

但我duration列time(7)獲得在預約的分鐘數。

如何將int轉換爲duration？

Answer 1

declare @Time as Time(7) = '01:02:03'; 
select @Time as 'Time(7)', DateDiff(minute, 0, @Time) as 'Minutes'; 

declare @Minutes as Int = 90; 
select @Minutes as 'Minutes', Cast(DateAdd(minute, @Minutes, 0) as Time(7)) as 'Time(7)'; 

Answer 2

您可以嘗試DATEADD功能並將分鐘添加到00:00:00時間。

DATEADD(MINUTE, @durationMinutes, '00:00:00')