Peter Larsson has been an international consultant and lecturer since 1993. Peter is a SQL Server MVP (since 2009), a MCT (since 2011), leader and co-founder of the local PASS chapter Scania, and a mentor 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 to just a few seconds or minutes. When not working, Peter spends his time with his wife and four kids.