Cloud Database Management Systems (DBMS) are software systems that manage and store data in the cloud. These systems provide a centralized repository for storing, organizing and retrieving data, allowing organizations to access and analyze their data from anywhere with an internet connection. Cloud DBMS offer features such as data management, backup and recovery, security, and scalability, making it easier for organizations to manage and analyze their data. There are two main types of cloud database management systems: SQL (Structured Query Language) and NoSQL databases. SQL databases are best suited for structured data, while NoSQL databases are designed for unstructured data and large scale, high-performance data processing. Examples of cloud database management systems include Amazon Relational Database Service (RDS), Microsoft Azure Database, and Google Cloud SQL. By using cloud database management systems, organizations can reduce the cost and complexity of managing their data and improve their ability to access and analyze their data from anywhere.