测试sql语句的执行时间

CHECKPOINT
GO
DBCC FREEPROCCACHE 
GO
DBCC DROPCLEANBUFFERS 
GO
DBCC FREESYSTEMCACHE('ALL') ;
GO
SET Statistics IO ON
GO
SET Statistics TIME ON
GO
declare @b datetime,@e datetime
set @b =getdate()

SELECT CarouselID FROM VBaggageReclaimCarousel 
WHERE DateDiff(mi, CarouselCloseTime, '2014/11/2 1:40:3:799') < 30 
and DateDiff(mi, '2014/11/2 1:40:3:799', CarouselOpenTime) < 30
set @e =getdate()

select datediff(ms,@b,@e)
SET Statistics IO OFF
GO
SET Statistics TIME OFF
GO