Oracle CDC for Oracle Real-Time Replication is a technology designed to capture and move data changes from Oracle databases to other systems in real-time, enabling businesses to ensure that their data systems are synchronized, reducing latency and enabling faster decision-making processes. Oracle CDC works by providing access to an authoritative record of changes such as inserts, updates, and deletes, and then applying these changes to a target system. This technology is crucial for maintaining up-to-date data in environments where timely information is critical, allowing businesses to make decisions based on real-time insights, optimize data processing, and replicate data in real-time. Oracle CDC offers several significant advantages, including optimized data processing, improved scalability and robustness, and enhanced security and compliance. The technology also provides various methods for implementing CDC with Oracle databases, such as non-log-based and log-based methods, each with its own set of advantages and use cases.