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sql分页性能测试结果

2024-07-13 19:59:38   215人阅读

--方案一：

declare @d datetimeset @d = getdate()select top 10 * from Info where ID not in (select top 9990 ID from Info order by ID) order by ID select [not in方法升序分页执行花费时间(毫秒)]=datediff(ms,@d,getdate()) --430ms

 

--方案二：

declare @s datetimeset @s = getdate()select top 10 * from info where ID >=(select max(ID) from (select top 9991 ID from info order by ID) as T) order by IDselect [Max方法升序分页执行花费时间(毫秒)]=datediff(ms,@s,getdate()) --13ms


--方案三：

declare @q datetimeset @q = getdate()select top 10 * from Info where ID <=(select min(ID) from (select top 9991 ID from Info order by ID desc) as T) order by ID descselect [Min方法降序分页执行花费时间(毫秒)]=datediff(ms,@q,getdate())--10ms

 

--方案四：

declare @r datetimeset @r = getdate()select top 10 * from ( select row_number()over( order by id desc) as rowNumber,* from info) Twhere T.rowNumber>0 select [row_number()方法降序分页执行花费时间(毫秒)]=datediff(ms,@r,getdate())--3ms

 

--方案五：

with infos as(select r.*, row_number()over(order by r.id desc) as r from [Info]  r) select * from infos where r between 1 and 30;

方案五没有采取top的形式取数据，而是用了between，相同点都用了row_number()函数。根据平常的分页习惯，方案四、五效率最高,且性能相当.


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