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Databases

Building a Transaction-Free, Flawless CDC (Change Data Capture) System

November 22, 2024

Building a Transaction-Free, Flawless CDC (Change Data Capture) System

Introduction

With increasing regulations such as the Personal Information Protection Act, Electronic Financial Transaction Act, and Medical Records Privacy Act, service providers are legally mandated to log changes to sensitive data, including personal information. Beyond legal obligations, logging database changes is essential for real-time monitoring, threat detection, data integrity maintenance, and incident response. These are critical for ensuring service stability and security, making change capture a vital requirement for developers, database administrators, and security experts.

To meet these requirements, many service providers leverage Change Data Capture (CDC) technology—a method to identify and track data changes in real time. At QueryPie, which provides database access control capabilities, CDC is also an integral feature. This white paper discusses the approach QueryPie takes to implement a CDC system without relying on transactions.

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