NoSQL Databases: Architecture, Data Models, and Practical Use

Understand why NoSQL databases emerged and how their architectures differ from relational systems. This tutorial explores document, key-value, wide-column, and graph databases; data modeling; partitioning; sharding; replication; consistency; CAP; transactions; caching; CQRS; microservices; and polyglot persistence. It concludes with practical architecture decisions for ownership, data flow, scaling, performance, and failure scenarios.

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1. Lesson 1: Why NoSQL Exists Demo 2. Lesson 2: Relational vs. NoSQL: The Fundamental Differences Demo 3. Lesson 3: The Distributed Systems Foundations of NoSQL Demo 4. Lesson 4: Document Databases Demo 5. Lesson 5: Key-Value Databases Demo 6. Lesson 6: Wide-Column Databases Locked 7. Lesson 7: Graph Databases Locked 8. Lesson 8: Data Modeling in NoSQL Locked 9. Lesson 9: Partitioning and Sharding Locked 10. Lesson 10: Replication Locked 11. Lesson 11: Consistency Models Locked 12. Lesson 12: CAP Theorem in Practice Locked 13. Lesson 13: Transactions in NoSQL Locked 14. Lesson 14: ACID, BASE, and Eventual Consistency Locked 15. Lesson 15: Handling Relationships Without Relational Joins Locked 16. Lesson 16: MongoDB Architecture and Design Locked 17. Lesson 17: Redis Architecture and Use Cases Locked 18. Lesson 18: Cassandra Architecture and Data Modeling Locked 19. Lesson 19: DynamoDB Architecture and Design Locked 20. Lesson 20: Graph Databases with Neo4j Locked 21. Lesson 21: NoSQL in Microservices Locked 22. Lesson 22: NoSQL, Caching, CQRS, and Event-Driven Architecture Locked 23. Lesson 23: Choosing the Right Database: Architecture Decision Framework Locked 24. Lesson 24: Designing a Polyglot Persistence System Locked 25. Lesson 25: Assigning Data Ownership to Services Locked 26. Lesson 26: Designing the Database Architecture Locked 27. Lesson 27: Designing the Data Flow Locked 28. Lesson 28: Consistency, Replication, and Failure Scenarios Locked 29. Lesson 29: Scaling and Performance Architecture Locked 30. Lesson 30: Defending the Architecture: ADR and Architectural Trade-offs Locked