час между двумя Datatime SQL
Declare @InTime datetime='2017-11-27 10:00:00',
@OutTime datetime='2017-11-27 11:15:00'
SELECT CONVERT(varchar(5),DATEADD(minute,DATEDIFF(minute,@InTime,@OutTime),0), 114)
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Result
01:15
Angry Albatross