第一种方法： 复制代码 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.micro
第一种方法： 复制代码 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: 复制代码 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:
Links: http://msdn.microsoft.com/zh-cn/library/ff650689.aspx ; http://msdn.microsoft.com/zh-cn/library/aa175244(v=SQL.80).aspx Demo For three kinds of Method: For SQL Script: 复制代码 代码如下: select * from dbEBMSStaging.dbo.MSSalesTxlatOrganizationMaster_Corg StagingOMC
v Its Execution plan: (
)
v Its IO info: (
)
– – You can try one table with 100/10000/1000000 rows but create/don’t create Clustered/NONCLUSTERED Index.
v Its Detail info Etc.: (
)
For SQL Script:
复制代码 代码如下: select top 100 * from dbEBMSStaging.dbo.MSSalesTxlatOrganizationMaster_Corg StagingOMC
v Its Execution plan: (
)
v Its IO info: (
)
v Its Detail info Etc.: (
)
For SQL Script:
复制代码 代码如下: select top 100 * from dbEBMSStaging.dbo.MSSalesTxlatOrganizationMaster_Corg StagingOMC order by StagingOMC.COrgTPName
v Its Execution plan: ( 
)
v Its IO info: (
)
v Its Detail info Etc.: (
)
For SQL Script:
复制代码 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: (
)
v Its IO info: (
)
v Its Detail info Etc.: (
)
– – 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.
