Database Transactions Skill

Overview

Understand and implement database transactions with ACID properties and proper concurrency control.

Topics Covered

ACID Properties

• Atomicity
• Consistency
• Isolation
• Durability
• Trade-offs

Isolation Levels

• Read uncommitted
• Read committed
• Repeatable read
• Serializable
• Snapshot isolation

Concurrency

• Locking mechanisms
• Deadlock handling
• Optimistic locking
• MVCC concepts
• Lock monitoring

Transaction Patterns

• Savepoints
• Nested transactions
• Distributed transactions
• Two-phase commit
• Saga pattern

Prerequisites

• SQL fundamentals
• Database concepts

Learning Outcomes

• Implement ACID transactions
• Choose isolation levels
• Handle deadlocks
• Design concurrent systems