脚本宝典收集整理的这篇文章主要介绍了分析SQL语句性能3种方法分享,脚本宝典觉得挺不错的,现在分享给大家,也给大家做个参考。
第一种方法: Minimsdn
.COM为您提供的代码:
-- Turn ON [Dis
play 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/li
brary/ms184361.aspx
第二种方法:
MINIMSDN.com为您提供的代码:
-
-turn ON [Display det
ail 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 t
hree kinds of Method:
For SQL Script:
select *
From dbEBMSSta
ging.dbo.MSSalesTxlat
organizationMaster_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:
select top 100 * f
rom 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.COrgTPN
ame
v Its Execution plan: ( )
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
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.
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