Seven Databases in Seven Weeks (2nd Edition) | Data Engineering & Databases | Oh My Learning

01 Relational vs NoSQL Framing and CAP-Era Trade-offs 11 min read mid drafted 02 PostgreSQL: Relational Modeling, Constraints, and Transactional Strength 9 min read junior drafted 03 HBase: Wide-Column Modeling and Access-Pattern-First Design 8 min read mid drafted 04 MongoDB: Document Modeling, Indexing, and Schema Flexibility Limits 8 min read mid drafted 05 CouchDB: Replication-First Documents and Conflict-Oriented Workflows 9 min read mid drafted 06 Neo4j: Graph Modeling and Traversal-Centric Query Design 8 min read mid drafted 07 DynamoDB: Partition-Key Design, Throughput Units, and Access Constraints 9 min read senior drafted 08 Redis: In-Memory Data Structures, Caching Roles, and Persistence Modes 10 min read mid drafted 09 Cross-Database Comparison and Workload-Driven Store Selection 11 min read senior drafted