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Howdy! Come on in!

Here is the introductory post to my new blog on SQL, data-driven applications, performance, scaling, and anything else I feel like posting.  For those of you who do not know me, Paul Randal...

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User Question: Plan Cache Pollution

I’ve already received a few comments and mails from people asking questions… One comment I’ve received is about LINQ’s IN operator(method?) and SQL Server plan cache pollution.  I’m researching the...

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SQL Server IN Plans and the query plan cache

This post builds upon my previous post on some of the various kinds of plans for the IN operator.  I will cover some of the query plan cache behavior associated with IN plans. For this post we’ll be...

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Subqueries in the Query Optimizer

I’ve been trying to think of a good way to introduce how SQL Server does subqueries based on a question from a reader.  One of the tricky pieces to query optimization is that the “language” used...

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Operator of the Day: Sequence Project

So I’ll be posting explanations for each query operator in the output query trees that you can see through “set showplan_text on” in SQL Server.  I’m hopeful that this will give you the tools to better...

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Query Optimization DMV du jour – sys.dm_exec_query_optimizer_info

So as you proceed up the river into the jungle, searching for answers about how the query optimizer works, I’ll ask you one question: Did you know that there’s actually a lot of stuff that the...

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Progress on the SQL 2008 CTP6 Installation Problems

You may recall my previous posts on my trouble with SQL 2008 CTP6.  I’ve made some progress on fixing my machine that I thought I’d share with you.  I now get past the following error:...

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Costing and Statistics, continued…

I started off tonight playing with the new page compression feature.  So far I like it.  I haven’t found something yet about which I want to post (which is code for “I’m still looking for the seams ”),...

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SQL 2008 Geometry type tidbits

I spent some time playing with the SQL 2008 geometry data type.  This post will cover some of the things I have learned about how it is implemented from playing with the feature.  Some of these will...

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A nice MSDN article on SQL 2008 Data Warehousing

http://technet.microsoft.com/en-us/magazine/cc434693.aspx It covers some of the new features in SQL 2008 w.r.t. Data Warehousing. Conor Cunningham The post A nice MSDN article on SQL 2008 Data...

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