I'm Klaus Aschenbrenner

I help people to bring their sql server installations to a new level of excellence.

“Klaus resolved our performance problems quickly and easily and gave us perfect guidance to avoid them in the future.” Michael from Mannheim, Germany

SQLpassion Offerings

SQLpassion, a European SQL Server consulting company, provides high-quality SQL Server consulting services. We are based in Vienna, Austria, but our client base is spread across the continent. We provide the following SQL Server services:

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You have seen my Blog Postings?

SQLpassion Workshops for Fall 2017

Time goes by, and today I’m very proud to announce all upcoming SQLpassion workshops for the second half of the ...


SQLpassion Online Trainings in July 2017

Tracking Lookup Operations in SQL Server

How to calculate RAID 5 Parity Information

Cardinality Estimation Limitations

Do you ever wanted to know how a simple CPU is actually implemented?


Time for a latest SQL Server Quickie:

Upcoming Events

Webcast: Troubleshooting Latches in SQL Server, July 4
Webinar: SQL Server Performance Troubleshooting, July 5
SQL Server Query Tuning Workshop
SQL Server Performance Tuning Workshop


SQLdays, October 9 – 12 in Erding/Germany


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