Please start any new threads on our new site at http://forums.sqlteam.com. We've got lots of great SQL Server experts to answer whatever question you can come up with.

Our new SQL Server Forums are live! Come on over! We've restricted the ability to create new threads on these forums.

SQL Server Forums
Profile | Active Topics | Members | Search | Forum FAQ
 
Register Now and get your question answered!
Username:
Password:
Save Password
Forgot your Password?

 All Forums
 SQL Server 2000 Forums
 SQL Server Administration (2000)
 Performance diff between linked / adhoc queries
 Reply to Topic
 Printer Friendly
Author Previous Topic Topic Next Topic  

rcurrey
Starting Member

30 Posts

Posted - 02/27/2007 :  12:45:54  Show Profile  Reply with Quote
I have an environment with several servers in a central location and approx 56 remote servers. We are currently using OPENROWSET for our queries, but I am curious if there are any performance benefits of one vs the other. When I use an OPENQUERY against a linked or an adhoc OPENROWSET, they produce identical execution plans. If I use a four-part name for the same query, it is approximately 10% of the estimated resources.

Can someone help me understand what's happening here?

Here are the 3 queries:

select * from openquery(myserver,'select * from TestDB.dbo.testtable')

select * from openrowset('SQLOLEDB','Server=myserver;uid=myid;pwd=mypass;',
'select * from TestDB.dbo.testtable')

select * from myserver.TestDB.dbo.testtable


Thanks,
Rich
  Previous Topic Topic Next Topic  
 Reply to Topic
 Printer Friendly
Jump To:
SQL Server Forums © 2000-2009 SQLTeam Publishing, LLC Go To Top Of Page
This page was generated in 0.09 seconds. Powered By: Snitz Forums 2000