Peter Larsson has been an international consultant and lecturer since 1993. Peter was a SQL Server MVP for 10 years, a MCT since 2011, leader and CEO for SQLUG (the Swedish SQL Server User Group). He also does technical reviewing and editing for various publishing companies, including RedGate and Microsoft. Peter wrote chapter 25 in the book SQL Server MVP Deep Dives 2. Peter’s key expertise is high-performance querying, and he’s well known for his unorthodox mindset when solving complex problem statements. It’s not unusual for Peter to refactor an algorithm or query and reduce the runtime from hours or days, to just a few seconds or minutes.