10Sep 2008 by Grant Fritchey No Comments

PASS Summit

PASS, Tools, Visual Studio
It looks like this year is going to be pretty good. They've expanded the program. If you're not going, you should consider it. Personally, I'm pretty excited. I'm presenting our build and deployment process using Visual Studio Team System Database Edition. I've got the first half of the presentation down cold because it's how we've been doing our deployments for a couple of years now. The second half concerns me a bit. I'm showing the new release that works with SQL Server 2008. Unfortunately that new release isn't done and I keep having to update my code and slides as the new versions come out with different functionality. I'm more than a little bit nervous about that part of the presentation. I wish there was a way to bounce it…
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09Sep 2008 by Grant Fritchey No Comments

Query Fingerprints and Plan Fingerprints

nHibernate, T-SQL
SQL Server 2008 has been released, but the full capabilities of the product are still be discovered. This isn't a case of discovery so much as Microsoft, in the person of Bart Duncan, has shown us something new. Read the article. This is one of the most exciting things I've seen in a long time. It's especially exciting as we see databases becoming less and less manageable through the implementation of tools like nHibernate. As I noted in a previous post, nHibernate will create a lot of execution plans. With the capabilities here, we'll be able to easily and quickly aggregate some of those plans to identify the costly queries coming out of nHibernate without having to resort to 24 hour Profiler monitoring. Great stuff.
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18Aug 2008 by Grant Fritchey No Comments

Training and Learning

SQL Server, Tools
I think these are usually two different things, but most people conflate the two. There was a great discussion over at SQL Server Central based on an editorial by Steve Jones. It's worth reading through to see how people learn or get themselves trained. One common theme is reading books. I'm looking at stacks of them all over my desk, so it would be hard to deny their use. If you too like to read, then I've got something for you. Red Gate is doing a promotion where, when you purchase SQL Tool Belt, you can also download five E-Books offered by Apress. Several of them look pretty interesting, so this is a good deal. Not to mention, if you're not using some of the tools from SQL Tool Belt already, you're…
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15Aug 2008 by Grant Fritchey 1 Comment

SQL Server 2008 Install, cont.

Tools
OK. Hopefully you're all reading this stuff BEFORE trying to do the install and certainly BEFORE uninstalling everything in sight. The latest version of SQL Prompt, version 3.9, is 2008 compatible AND doesn't cause this problem with the install. So, I've got to reinstall the software. Time to track down my license. I hope I kept that email.
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15Aug 2008 by Grant Fritchey No Comments

SQL Server 2008 Install, cont.

Tools
OK. I found some information. The first suggests uninstalling SQL Prompt. I tried it and that did the trick. The second suggest was to do a brute-force removal of the registry key: HKLM\SOFTWARE\Microsoft\Microsoft SQL Server\90. I didn't get there.  Install is running on the desktop now. That seems a bit mean of Microsoft, requiring me to uninstall Red Gate's SQL Prompt, especially since it's such a great little tool. I wonder if I can install it on top of 2008? Time for some more research.
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15Aug 2008 by Grant Fritchey 2 Comments

SQL Server 2008 Install

Uncategorized
I just finished the install of SQL Server 2008 RTM on my laptop. No real issues except that it wanted SP1 of Visual Studio installed before it would complete. Once I had that done, everything was up and running. The new install routines are nicer than the old ones if a bit more detailed. My desktop is another matter. SQL Server 2008 objected to a SQL Server 2005 Express install. I removed that. It still thinks Express is installed. I'm removing all of SQL Server 2005 to see what happens.  The error reported was pretty non-helpful. This is a bit odd since the laptop also has a copy of Express installed. Well, uninstalling all things SQL Server didn't work. Sql2005SsmsExpressFacet is failing. It simply states: "The SQL Server 2005 Express…
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15Aug 2008 by Grant Fritchey No Comments

More on Table Valued Functions

T-SQL
From the hits in the search results, this is a popular topic. That being so, I'd like to redirect you to another blog that has some more detailed tests available. These tests show more of the shortcomings of multi-statement table valued functions. Gail Shaw is an MVP and a regular at SQL Server Central. She's worth tracking and this post shows why. I want to be clear. I'm not suggesting that you never, ever, use multi-statement table valued functions. There may be places where their use is helpful. I'm saying that using them comes with a very heavy cost, so you better be sure that they are in fact needed in the situation, whatever it is. There was a long discussion and debate over at SQL Server Central recently on…
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13Aug 2008 by Grant Fritchey 18 Comments

View vs. Table Valued Function vs. Multi-Statement Table Valued Function

T-SQL
About five years ago, I was checking an app before it went to production. I hadn't seen the app before then and a junior dba had worked with the developers designing and building the app. It didn't use a single stored procedure or view. Instead, it was built entirely of multi-statement UDF's. These UDF's called other UDF's which joined to UDF's... It was actually a very beautiful design in terms of using the functions more or less like objects within the database. Amazing. It also would not, and could not, perform enough to function, let alone scale. It was a horror because they thought they were done and ready to go to production, but no one had ever tested more than a couple of rows of data in any of…
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08Aug 2008 by Grant Fritchey No Comments

SQLPLAN Glitch

SQL Server, T-SQL
While I was doing some work for Andy Warren (more on this after Sept 1st), I came across an interesting little glitch when saving XML execution plans out as SQLPlan files. It's easy enough to replicate. Just get an XML execution plan from your query: SET STATISTITCS XML ON; SELECT... Click on the link to open the XML plan. Click on the "File" menu and then the "Save As" menu item. It opens the familiar file save window. Click on the "Save as type" drop down and switch to "All Files (*.*)" Save the file with an extension of ".sqlplan." Good. Now you've got an execution plan file that can be opened and viewed as a GUI execution plan. Without closing the XML, try to open this new plan. You…
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06Aug 2008 by Grant Fritchey No Comments

Deadlocks vs. Blocks

SQL Server, T-SQL
It makes me crazy when I interview someone who has five or more years as a DBA, but they don't know the difference between a block and a deadlock. It's a complete showstopper for me. If you don't know this, you're an entry-level DBA, don't talk to me about your years of experience. Sorry, but there it is. Here's someone that's kinder than I am in every way. Not only have they cut people slack on this question, but he's provided a well done answer to the question. For those who may interview with me in the future, go and read this and understand it.
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