Oracle GoldenGate is a software package for real-time data integration and replication between heterogeneous systems. It enables solutions for high availability, real-time data integration, transactional change data capture, data replication, transformations, and verification. Oracle GoldenGate provides core data movement capabilities as well as visual management and monitoring tools. It supports replication between various database technologies like Oracle, IBM DB2, Microsoft SQL Server, and others. GoldenGate allows organizations to access and deliver real-time enterprise data across different systems.