This article was originally published on AI Study Room . For the full version with working code examples and related articles, visit the original post. Database Design Fundamentals: Normalization, Indexing, and Schema Design A well-designed database makes every query simpler and faster. A poorly-designed one creates bugs, slow queries, and painful migrations forever. Here are the fundamentals every developer should know before creating tables. 1. Normalization — Reduce Redundancy Normalization eliminates duplicate data and prevents update anomalies. You need at least 3NF (Third Normal Form) for most applications.…