A cloud database is a type of database that is hosted and managed on a cloud computing platform. This means that instead of being stored on a local server or computer, the data is stored on remote servers accessed via the internet. Users can access and manage their data from anywhere, making it convenient for businesses and individuals. Cloud databases offer scalability, allowing users to easily increase or decrease their storage and processing power as needed. They also provide automatic backups and updates, enhancing data security and reducing maintenance efforts. Popular examples of cloud databases include Amazon RDS and Google Cloud SQL.