PostgreSQL Complete Interactive Guide
Master PostgreSQL from architecture to extensions with hands-on examples, MCQs, and coding challenges. Built for production developers.
How PostgreSQL Works
Server architecture, processes, shared memory, and how to read the query plans the optimizer produces.
Querying & Storage
Write correct SQL, choose the right index, and leverage schema-flexible JSONB without giving up performance.
Large Data & High Availability
Partition big tables, replicate for reads and failover, and tune PostgreSQL with data-driven workflows.
Concurrency & Extensions
Master MVCC isolation levels and add superpowers with the extension ecosystem: vector, trigram, geospatial, and more.