Things I Wished More Developers Knew About Databases

In high-stakes, data-heavy systems, databases are core to design yet often underestimated in complexity; beyond common issues like dirty reads and data loss, developers must grasp concepts like optimistic locking, multi-version concurrency control (MVCC), and application-level sharding, understand isolation levels—Serializable, Repeatable Reads, Read Committed, Read Uncommitted—and accept the limitations of time synchronization and ordering in distributed systems to avoid pitfalls and ensure reliability in their implementations.