Advanced Database Concepts
Go beyond basic queries to understand indexing strategies, query optimization, replication, and distributed database architectures. You'll learn how to design data systems that scale.
7 lessons
Query Optimization Fundamentals
Learn to analyze and improve database query performance for faster applications.
Index Design Strategies
Design effective database indexes that speed up queries without slowing down writes.
Transactions and Isolation Levels
Learn how database transactions group operations atomically and how isolation levels control what concurrent transactions can see.
Database Replication
Understand how copying data across multiple servers enables high availability, read scaling, and geographic distribution.
Sharding and Horizontal Scaling
Learn how sharding splits data across multiple databases to scale beyond single-server limits, and when this complexity is worth it.
Data Modeling Patterns
Apply proven patterns for soft deletes, audit trails, polymorphic associations, and temporal data to solve common database design challenges.
Database Monitoring and Debugging
Learn to monitor database health, identify slow queries, and debug common performance issues before they become outages.