Category
Database
Relational, NoSQL and in-memory data stores.
5 live courses · 7 on the roadmap
🗄️sql
SQL
Database engineering with SQL, PostgreSQL, query optimization, and transactions.
Beginner → Pro·32h content·85 lessons
Start SQL🐘postgresql
PostgreSQL
Production PostgreSQL: SQL, indexes, MVCC, JSONB, replication, backups, security and DBA performance tuning.
Beginner → Architect·38h content·143 lessons
Start PostgreSQL⚡dynamodb
Amazon DynamoDB
Serverless NoSQL on AWS: tables, keys, partitions, access patterns, scaling, global apps, and production best practices.
Beginner → Pro·18h content·6 lessons
Start Amazon DynamoDB🍃mongo
MongoDB
Document-first NoSQL: BSON, aggregation, indexes, replication & sharding.
Beginner → Pro·28h content·120 lessons
Start MongoDB⚡redis
Redis Mastery
In-memory data structures to distributed systems: caching, clustering, Spring Boot & production ops.
Beginner → Staff·32h content·42 lessons
Start Redis MasteryOn the roadmap
More Database tracks coming soon — vote with a click.