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
Test execution time sql statement
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Origin blog.csdn.net/nanfeiyannan/article/details/42751007
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