Document Databases: MongoDB and CouchDB Data Modeling
Learn MongoDB and CouchDB data modeling, embedding vs referencing, schema validation, and when document stores fit better than relational databases.
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Encryption at Rest: TDE, Key Management, and Performance
Learn Transparent Data Encryption (TDE), application-level encryption, and key management using AWS KMS and HashiCorp Vault. Performance overhead explained.
Event Sourcing
Storing state changes as immutable events. Event store implementation, event replay, schema evolution, and comparison with traditional CRUD approaches.
Failover Automation
Automatic failover patterns. Health checks, failure detection, split-brain prevention, and DNS TTL management during database failover.
GDPR Compliance: Technical Implementation for Database Systems
Understand GDPR requirements: deletion, portability, consent, agreements, breach notification. Database implementation strategies.
Graph Databases: Neo4j and Graph Traversal Patterns
Learn Neo4j graph database modeling with Cypher. Covers nodes, edges, social networks, recommendation engines, fraud detection, and when graphs are not the right fit.
Index Design Clinic: Composite Indexes, Covering Indexes, and Partial Indexes
Master composite index column ordering, covering indexes for query optimization, partial indexes for partitioned data, expression indexes, and selectivity.
Database Indexes: B-Tree, Hash, Covering, and Beyond
A practical guide to database indexes. Learn when to use B-tree, hash, composite, and partial indexes, understand index maintenance overhead, and avoid common performance traps.
Understanding SQL JOINs and Database Relationships
Master SQL JOINs with this practical guide covering INNER, LEFT, RIGHT, FULL OUTER, and CROSS joins. Learn how relationship types between tables shape your queries.
Key-Value Stores: Redis and DynamoDB Patterns
Learn Redis and DynamoDB key-value patterns for caching, sessions, leaderboards, TTL eviction policies, and storage tradeoffs.