Oracle Database is a widely used, enterprise-level relational database management system (RDBMS) developed and maintained by Oracle Corporation. It is designed to handle a wide variety of data types and workloads, including transactional, analytical, and mixed workloads. Oracle Database is known for its robust features and scalability, making it a popular choice for businesses of all sizes. It supports various programming languages, including SQL, PL/SQL, and Java, and can be deployed on-premises or in the cloud. Oracle Database also offers advanced security features, including data encryption and access controls, to protect sensitive information.