sql 语句随机时间存储过程

CREATE PROC [dbo].[Proc_GetRandomTime](@startTime datetime,@endTime datetime,@date datetime output )
AS
Begin    

Declare @MS int
Set @MS=DATEDIFF(ms,@startTime,@endTime)

set @date=DateAdd(ms,Floor(@MS*rand()*5/8),@startTime)
End