← Learn/Part 4 · Data engineering

Production isn't just about being fast, but also secure and reliable. Here are the practices that distinguish an engineer from just a writer of queries: integrity cascades, idempotency, protection against SQL injection, roles and privileges, Row-Level Security, soft delete, auditing, and backups. Some topics (injection, backups) are conceptual by nature, so this is a mix of practical tasks and quizzes.