Transaction Management

Table of Contents

• Overview
• When to Use
• Quick Start
• Reference Guides
• Best Practices

Overview

Implement robust transaction management with ACID compliance, concurrency control, and error handling. Covers isolation levels, locking strategies, and deadlock resolution.

When to Use

• ACID transaction implementation
• Concurrent data modification handling
• Isolation level selection
• Deadlock prevention and resolution
• Transaction timeout configuration
• Distributed transaction coordination
• Financial transaction safety

Quick Start

Simple Transaction:

-- Start transaction
BEGIN;

-- Multiple statements
UPDATE accounts SET balance = balance - 100 WHERE id = 1;
UPDATE accounts SET balance = balance + 100 WHERE id = 2;

-- Commit changes
COMMIT;

-- Or rollback
ROLLBACK;

Reference Guides

Detailed implementations in the references/ directory:

| Guide | Contents | |---|---| | PostgreSQL Transactions | PostgreSQL Transactions | | MySQL Transactions | MySQL Transactions | | PostgreSQL Isolation Levels | PostgreSQL Isolation Levels | | MySQL Isolation Levels | MySQL Isolation Levels | | PostgreSQL Explicit Locking | PostgreSQL Explicit Locking | | MySQL Locking | MySQL Locking | | Deadlock Prevention | PostgreSQL - Deadlock Detection: |

Best Practices

✅ DO

• Follow established patterns and conventions
• Write clean, maintainable code
• Add appropriate documentation
• Test thoroughly before deploying

❌ DON'T

• Skip testing or validation
• Ignore error handling
• Hard-code configuration values