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
原文：http://www.cnblogs.com/sunxi/p/4589592.html