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Klaus Aschenbrenner

Klaus Aschenbrenner provides independent SQL Server Consulting Services across Europe and the US. Klaus works with the .NET Framework and especially with the SQL Server 2005/2008 from the very beginnings. In the years 2004 - 2005 Klaus was entitled with the MVP award from Microsoft for his tremendous support in the .NET Community. Klaus has also written the book Pro SQL Server 2008 Service Broker which was published by Apress in the Summer of 2008. Further information about Klaus you can find on his homepage at http://www.SQLpassion.at. He also twitters at http://twitter.com/Aschenbrenner.

Archives: October 2011

Troubleshooting THREADPOOL Waits

Today I want to talk about a specified wait type that can be sometimes very hard to troubleshoot: the THREADPOOL wait type. This wait type is specific to the internal thread scheduling mechanism inside SQL Server.

As you might know SQL Server internally uses its own "operating system" to implement… Read more

3 comments, 6,459 reads

Posted in Klaus Aschenbrenner on 25 October 2011

Query Memory Spills

When you sometimes look at Execution Plans, you can see that the SELECT operator has sometimes a so-called Memory Grant assigned. This Memory Grant is specified in kilobytes and is needed for the query execution, when some operators (like Sort/Hash operators) in the Execution Plans need memory for execution –… Read more

2 comments, 3,014 reads

Posted in Klaus Aschenbrenner on 19 October 2011

Slides & Samples for my Advanced SQL Server Troubleshooting session at SQLPASS

As I have announced in my "Advanced SQL Server Troubleshooting" session at SQLPASS today, you can find here the slides & samples for download. Thanks for attending my session J

-Klaus

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0 comments, 379 reads

Posted in Klaus Aschenbrenner on 14 October 2011

SQL Server Indexing Day, 18. Jänner 2012 in Wien

Sie wollen SQL Server Abfragen um 100% oder gar 1000% beschleunigt haben? Gleichzeitig wollen Sie Hardware– und Lizenzkosten Ihrer SQL Server Anwendungen und deren Infrastruktur senken? Ein Wunschdenken? - Keineswegs!

Mit einer gut indizierten SQL Server Datenbank können Sie Geschwindigkeitsvorteile von mehreren 100% für bestimmte Abfragen gewinnen. Als positiven Seiteneffekt… Read more

0 comments, 596 reads

Posted in Klaus Aschenbrenner on 4 October 2011

Slides & Samples from my SQLbits sessions

As I have announced in all of my sessions at the SQLbits conferences in Liverpool/UK, you can find here the Slides & Samples for download. Enjoy it and thanks for attending my sessions. J

-Klaus

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0 comments, 482 reads

Posted in Klaus Aschenbrenner on 2 October 2011