--------------------------------------------------------------------------
Method 1:
---------------------------------------------------------------------------
-- Turn ON [Display IO Info when execute SQL]
SET STATISTICS IO ON www.2cto.com
-- Turn OFF [Display IO Info when execute SQL]
SET STATISTICS IO OFF
-- Link: http://msdn.microsoft.com/zh-cn/library/ms184361.
aspx
---------------------------------------------------------------------------
Method 2: www.2cto.com
---------------------------------------------------------------------------
--Turn ON [Display detail info and the request for resources]
SET SHO
WPLAN_ALL ON
-- Turn OFF [Display detail info and the request for resources]
SET SHOWPLAN_ALL OFF www.2cto.com
-- Link: http://msdn.microsoft.com/zh-cn/library/ms187735
---------------------------------------------------------------------------
Method 3:
---------------------------------------------------------------------------
-- 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: www.2cto.com
---------------------------------------------------------------------------
For SQL Script:
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. www.2cto.com
v Its Detail info Etc.: (
)
)
For SQL Script:
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:
select top 100 * from dbEBMSStaging.dbo.MSSalesTxlatOrganizationMaster_Corg StagingOMC
order by StagingOMC.COrgTPName
v Its Execution plan: (
)
)
www.2cto.com
v Its IO info: (
)
)
v Its Detail info Etc.: (
)
)
For SQL Script:
select top 100 StagingOMC.COrgTPName,COUNT(CorgID) from dbEBMSStaging.dbo.MSSalesTxlatOrganizationMaster_Corg StagingOMC
group by StagingOMC.COrgTPName www.2cto.com
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.
作者 justforu.team