Fixel Smith on practical SQL, fraud detection, and public-sector data analytics.https://analytics.fixelsmith.com/https://analytics.fixelsmith.com/posts/sql-fraud-patterns/https://analytics.fixelsmith.com/posts/sql-fraud-patterns/The actual queries I run when I'm hunting fraud in transaction data. Velocity, impossible distances, suspicious amounts, merchant clusters, off-hours buys, and window functions.Tue, 12 May 2026 00:00:00 GMT