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Cloud database
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<p>A cloud database is a <a href="/facts/Database/VYcpkevb">database</a> that typically runs on a <a href="/facts/Cloud_computing/guhg0FGV">cloud computing</a> platform and access to the database is provided as-a-service. There are two common deployment models: users can run databases on the cloud independently, using a <a href="/facts/Virtual_machine/BLevU3sx">virtual machine</a> image, or they can purchase access to a database service, maintained by a cloud database provider. Of the databases available on the cloud, some are <a href="/facts/SQL/UjQLJcYm">SQL</a>-based and some use a <a href="/facts/NoSQL/vvynRKfd">NoSQL</a> data model. </p><p>Database services take care of scalability and high availability of the database. Database services make the underlying software-stack transparent to the user. </p>