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?

How the CHECKPOINT process deals with uncommitted transactions

At the beginning of my SQL Server Performance Tuning Workshop I always start by giving a general overview of what ...


Performance Troubleshooting with the Query Store in SQL Server 2016

How to create a SQL Server Availability Group WITHOUT an Active Directory Domain

Come to SQLBits, and learn about Locking & Blocking

Table Ordering for Joins

Announcing the *brand new* SQLpassion Briefings and new SQLpassion Workshops


Time for a latest SQL Server Quickie:

Upcoming Events

SQL Server Query Tuning Workshop
SQL Server Performance Tuning Workshop

SQLSaturday #494, April 1 in Vienna/Austria
DevWeek, April 18 to 22 in London/United Kingdom
SQLBits, May 4 to 7 in Liverpool/United Kingdom


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