Comments on: Performance of various methods to retrieve one list item

By: Tobias Zimmergren

Tobias Zimmergren — Tue, 30 Jun 2009 13:24:13 +0000

Awesome mate. Will shove some traffic over here

By: Andy Burns

Andy Burns — Thu, 25 Jun 2009 09:35:13 +0000

Yup – as you said, it\'s down to what you\'re trying to do

(I prefer not having folders too!)

Scope settings are described here:
http://msdn.microsoft.com/en-us/library/microsoft.sharepoint.spviewscope.aspx

By: Waldek Mastykarz

Waldek Mastykarz — Wed, 24 Jun 2009 19:15:43 +0000

@Andy Burns: I think that the GetItemById uses the recursive scope in case you were using folders. Without that the query would run in the root folder only. So while theoretically there might be situations when GetItemById might be as good as SPSiteDataQuery my test was focusing on a no-folder scenario like retrieving one Publishing Page (sorry for not mentioning this earlier). As the Pages Library doesn't support folder there's no need of running a recursive query.

By: Alex Angas

Alex Angas — Wed, 24 Jun 2009 14:59:00 +0000

I love these tests you do, please keep it up!

By the way, there is a page on SharePointDevWiki for cross-site queries that I created. Never had time to finish it though if you would like to: http://sharepointdevwiki.com/display/public/Performing+cross-site+list+queries

By: Andy Burns

Andy Burns — Wed, 24 Jun 2009 08:57:46 +0000

How in God's name can an SPQuery or SPSiteQuery be faster than 'GetItemById'? Wouldn't it make sense to use SPQuery internally?

Oh, just checked in reflector – it does! What might be different is that it also specifies that the SPQuery.ViewAttributes = "Scope="RecursiveAll" ModerationType="Moderator" ";

So, depending on your test query, it's possible that the GetItemById is actually running a more complex query. 'RecursiveAll' sounds expensive!

Fancy retesting using the same scopes? Might be interesting!

Of course, none of this takes away from your point – consider what *you* are doing and how you want to retrieve *your* content. Then test!

By: Robin

Robin — Tue, 23 Jun 2009 15:12:23 +0000

You've really outdone yourself mate! Damn!

By: Jeremy Thake

Jeremy Thake — Tue, 23 Jun 2009 06:13:54 +0000

Didn't miss them…I'm waiting for someone to add them Really trying to encourage the community to collaborate in this central resource. It's being consumed a lot by end users, but not too many are contributing at this stage…apart from you and a few other select stars!

By: Waldek Mastykarz

Waldek Mastykarz — Tue, 23 Jun 2009 05:34:09 +0000

@Jeremy: Thanks. I haven't found any entries on CrossListQueryCache and PortalSiteMapProvider by the way. Did I miss them?

By: Jeremy Thake

Jeremy Thake — Mon, 22 Jun 2009 22:22:40 +0000

Waldek, I've been compiling a list on the @SPDevWiki to demonstrate sample code on all these too as MSDN tends to just dump object model doco in their pages. http://www.sharepointdevwiki.com/display/public/SharePoint+Lists Great post mate!