Concurrency & Locking

[!NOTE] This module explores the core principles of Concurrency & Locking, deriving solutions from first principles and hardware constraints to build world-class, production-ready expertise.

1. Module Contents

1. MVCC Internals

Deep dive into Multi-Version Concurrency Control (MVCC), tuple visibility, and VACUUM.

2. Isolation Levels

Understand Read Committed, Repeatable Read, and Serializable levels, and the anomalies they prevent.

3. Explicit Locking

Learn about table locks, row locks (FOR UPDATE), and how to avoid deadlocks.

Review & Cheat Sheet

Test your knowledge with flashcards and a quick reference guide.

Module Chapters