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?

Where SQL Server does store the data of DMVs?

One of the questions that I get over and over again is about where SQL Server stores the data that ...


My upcoming speaking schedule

Composite Non-Clustered Indexes – does the Column Order matter?

999 Non-Clustered Indexes on a Table – a good idea?

SQL Server on Linux – first preview!

In-Memory OLTP and too less Memory


Time for a latest SQL Server Quickie:

Upcoming Events

SQL Server Query Tuning Workshop
SQL Server Performance Tuning Workshop

SQLdays Konferenz, October 10 – 13 in Erding/Germany


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