4 docs tagged with "nosql"

DynamoDB mastery for DVA-C02. Covers partition keys, sort keys, GSI vs LSI, read/write capacity modes, DynamoDB Streams, DAX, TTL, transactions, and the most common exam scenarios and anti-patterns.

From first principles to production — key-value, document, wide-column, and graph databases with deep dives into MongoDB and Cassandra for Java/Spring engineers.

What MongoDB is, why to use it, core concepts, data modelling, CRUD, aggregation, indexes, advanced architecture, and schema patterns. Covers beginner through senior depth.

A Senior Principal Engineer's comprehensive architectural guide to Vector Databases (HNSW, IVF-PQ, SCaNN), high-dimensional geometry, memory layout, and full-spectrum comparison with Relational (PostgreSQL/MySQL), Document (MongoDB), Key-Value (Redis), and Graph (Neo4j) engines.