Schema Design: Building the Foundation of Your Database
Learn how to design effective database schemas with proper data types, constraints, and relationships that scale with your application.
Learn how to design effective database schemas with proper data types, constraints, and relationships that scale with your application.
Understand READ COMMITTED, REPEATABLE READ, and SERIALIZABLE isolation levels, read vs write anomalies, and SET TRANSACTION syntax.
PostgreSQL's MVCC requires regular maintenance. This guide explains dead tuples, VACUUM vs VACUUM FULL, autovacuum tuning, REINDEX strategies, and how to monitor bloat with pg_stat_user_tables.
A practical learning path covering relational modeling, NoSQL patterns, indexing strategies, query optimization, and distributed data systems — everything you need to design databases that actually hold up under production load.
Learn how Elasticsearch powers search at scale with inverted indexes, sharding, replicas, and its powerful Query DSL for modern applications.