A structured learning path from installation to production-ready backends. Follow these chapters in order or jump to the topic you need.
Installation, tools (psql, pgAdmin, DBeaver), and pg_hba.conf configuration.
Capabilities, enterprise use cases, cost efficiency, and migration reasons.
How PostgreSQL connects to Node.js, Python, Java, and C++ with animated flow diagrams.
Pre-defined SQL exercises from basic to intermediate with hints and solutions.
Condensed PostgreSQL official docs: data types, config, backup, and replication.
Used by the world's largest companies for mission-critical workloads.
iCloud infrastructure and internal analytics platforms
1000+ PostgreSQL instancesUser data, feeds, and activity storage
Billions of rows with custom shardingUser accounts, playlists, and social features
500M+ users, thousands of microservicesComments, votes, subreddit metadata
430M+ monthly active usersChat metadata, channel state, user subscriptions
140M+ monthly usersTrade settlement, risk analytics, compliance reporting
Mission-critical financial dataWatch how your app talks to PostgreSQL step by step -- DNS, TCP, auth, query, response.
Pre-built exercises with hints and solutions. From basic SELECTs to window functions and CTEs.
Connection pooling, configuration tuning, backup strategies, and replication patterns.