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Chapter 05 · Databases

Data at Any Scale

Design databases that never let you down — SQL vs NoSQL, indexing, query optimisation, replication and sharding, in plain language.

PostgreSQLMongoDBRedisIndexingReplicationSharding

Databases Articles

All guides in this chapter

📅 2026-09-04⏱ 7 min read

Database Backup Best Practices: Never Lose Your Data Again

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📅 2026-07-21⏱ 11 min read

Database High Availability and Disaster Recovery: Architecture Patterns Explained

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📅 2026-07-13⏱ 7 min read

SQL vs NoSQL: Which Database Should You Choose in 2026?

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