SQL Server 分析SQL语句性能3种方法

2022-11-12 09:47:29

内容摘要

这篇文章主要为大家详细介绍了SQL Server 分析SQL语句性能3种方法，具有一定的参考价值，可以用来参考一下。对此感兴趣的朋友，看看idc笔记做的技术笔记！第一种方法：代码如下:

文章正文

这篇文章主要为大家详细介绍了SQL Server 分析SQL语句性能3种方法，具有一定的参考价值，可以用来参考一下。

对此感兴趣的朋友，看看idc笔记做的技术笔记！

第一种方法：

代码如下:

 
Minimsdn.com为您提供的代码: 
-- Turn ON [Display IO Info when execute SQL] 
SET STATISTICS IO ON 
-- Turn OFF [Display IO Info when execute SQL] 
SET STATISTICS IO OFF

Link: http://msdn.microsoft.com/zh-cn/library/ms184361.aspx第二种方法:

代码如下:

 
MINIMSDN.com为您提供的代码: 
--Turn ON [Display detail info and the request for resources] 
SET SHOWPLAN_ALL ON 
-- Turn OFF [Display detail info and the request for resources] 
SET SHOWPLAN_ALL OFF

Link: http://msdn.microsoft.com/zh-cn/library/ms187735第三种方法:

【图片暂缺】

Links: http://msdn.microsoft.com/zh-cn/library/ff650689.aspx ; http://msdn.microsoft.com/zh-cn/library/aa175244(v=SQL.80).aspxDemo For three kinds of Method:For SQL Script:

代码如下:

 
select * from dbEBMSStaging.dbo.MSSalesTxlatOrganizationMaster_Corg StagingOMC

v Its Execution plan: (【图片暂缺】)

【图片暂缺】

v Its IO info: (【图片暂缺】)

【图片暂缺】

- - You can try one table with 100/10000/1000000 rows but create/don't create Clustered/NONCLUSTERED Index.

v Its Detail info Etc.: (【图片暂缺】)

【图片暂缺】For SQL Script:

代码如下:

 
select top 100 * from dbEBMSStaging.dbo.MSSalesTxlatOrganizationMaster_Corg StagingOMC

v Its Execution plan: (【图片暂缺】)

【图片暂缺】

v Its IO info: (【图片暂缺】)

【图片暂缺】

v Its Detail info Etc.: (【图片暂缺】)

【图片暂缺】

For SQL Script:

代码如下:

 
select top 100 * from dbEBMSStaging.dbo.MSSalesTxlatOrganizationMaster_Corg StagingOMC 
order by StagingOMC.COrgTPName

v Its Execution plan: (【图片暂缺】)

【图片暂缺】

v Its IO info: (【图片暂缺】)

【图片暂缺】

v Its Detail info Etc.: (【图片暂缺】)

【图片暂缺】

For SQL Script:

代码如下:

 
select top 100 StagingOMC.COrgTPName,COUNT(CorgID) from dbEBMSStaging.dbo.MSSalesTxlatOrganizationMaster_Corg StagingOMC 
group by StagingOMC.COrgTPName 
order by StagingOMC.COrgTPName

v Its Execution plan: (【图片暂缺】)

【图片暂缺】

v Its IO info: (【图片暂缺】)

【图片暂缺】

v Its Detail info Etc.: (【图片暂缺】)

【图片暂缺】

- - By these three kinds of methods, you can try to check those words in the internet web are right or wrong about how to improve SQL Script performance.

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代码注释

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作者：喵哥笔记

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