I‘m Klaus Aschenbrenner, a Microsoft Certified Master for SQL Server
» I help people to bring their SQL Server
installations to a new level of excellence. «
SQLpassion Offerings
SQLpassion helps businesses get the most out of SQL Server – from smooth setups to better performance and long-term stability. As a Microsoft Certified Master, I offer tailored consulting, hands-on workshops, and share my expertise at international events – all with a clear focus on delivering real results.
You have seen my Blog Postings?
Column Tetris Explained: The Hidden Storage Costs of Migrating from SQL Server to PostgreSQL
Last Thursday I had the chance to attend the PGDay Austria conference, and it turned out to be one of the most inspiring community events I’ve been to in a long time. Not only did I listen to great talks about PostgreSQL internals, I also gave my very first lightning talk – nervously stepping on stage
Running PostgreSQL with PgBouncer on Mac OS Using Docker Compose
PostgreSQL is a powerful, feature-rich database system, but its architecture differs in significant ways from Microsoft SQL Server. One of the most important differences lies in how connections are handled. While SQL Server multiplexes many client requests across worker threads inside a single process, PostgreSQL spawns a dedicated backend process for every client connection. This
What’s New in SQL Server 2025
Microsoft has officially lifted the curtain on SQL Server 2025, and it is shaping up to be one of the most significant releases in years. Rather than just another incremental update, this version brings transformative features around AI, hybrid analytics, performance, and security. In this post, we’ll walk through the highlights of SQL Server 2025 and what
