Suning Technology

Jul 30, 2020 · Databases

Why Auto‑Increment IDs, Redundant Fields, and Index Limits Matter in Database Design

This article explores key database design decisions—including the benefits and drawbacks of auto‑increment primary keys, the trade‑offs of redundant columns, optimal index counts, and when to choose VARCHAR versus CHAR—offering practical guidelines to improve performance, storage efficiency, and maintainability.