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April 2011 Blog Posts


Converting page pointers into a human readable format

Written on Thursday, April 28, 2011 by Mark S. Rasmussen in SQL Server: Internals, SQL Server: Tricks

Learn how to convert the first_page, root_page, first_iam_page and general page pointers from hexadecimal to a human readable format.

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Watch out for implicit uniqueidentifier conversions

Written on Tuesday, April 26, 2011 by Mark S. Rasmussen in SQL Server: Optimization

Implicit conversions are bad for performance as they may cause index scans instead of index seeks. Learn how to avoid this when using the uniqueidentifier data type.

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Miracle Open World 2011 follow-up

Written on Sunday, April 17, 2011 by Mark S. Rasmussen in Conferences, SQL Server: Miracle Open World, Presenting

Last week I attended the Miracle Open World 2011 conference. As in the previous years the 80% content, 80% social moniker held true to its reputation. My legs and arms are still sore from carrying four-man rubber rings to the top of the four-story waterslide – not the typical aftermath of a conference. I met a lot of new awesome people and managed to pull of a couple of presentations with decent success as well, judging from the responses I’ve had so far. I’ve included the slides & demo code for the presentations below. Anatomy of an MDF File...

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42 weeks later

Written on Sunday, April 17, 2011 by Mark S. Rasmussen in Blogging

It’s now been roughly 42 weeks since I last wrote a blog entry, phew, time flies! I’ve been busy, one week became two weeks, a month, half a year and before long the tumbleweeds start drifting by. I originally setup the blog back in ‘06 to blog about my ventures in the World Series of Poker. In a moment of temporary insanity, I decided to write my own blog engine as a fun project – reviving my previous homemade blog engine written in in VB, the horror. While it was a fun project initially, keeping it up to date,...

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