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This article mainly explains "how to use the SQL Server DATEDIFF () function". Interested friends may wish to have a look at it. The method introduced in this paper is simple, fast and practical. Now let the editor take you to learn how to use the SQL Server DATEDIFF () function.

Definition and usage

DATEDIFF (datepart,startdate,enddate)

The startdate and enddate parameters are legal date expressions. The datepart parameter can be the following values:

Example

Select DATEDIFF (dd,'2021-12-01) day-number of days select DATEDIFF (hh,'2021-12-01 08 day) hour-hour select DATEDIFF (mi,'2021-12-01 08 day) minute-min

Return

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