Transaction Management & Concurrency Control

This lecture covers the fundamentals of transaction management and concurrency control in database systems. It starts by explaining the components of a DBMS, the challenges of concurrent database access, and the importance of resilience to system failures. The instructor discusses the ACID properties, the goal of concurrency control, and mechanisms for ensuring transaction consistency. Various anomalies with interleaved executions are explored, along with solutions like lock-based concurrency control. The lecture also delves into the concepts of atomicity, logging, recovery, and conflict serializability. It concludes by emphasizing the significance of concurrency control and recovery in maintaining database integrity and consistency.