What is Cloud Database?
Any database that runs on a cloud computing platform is called a cloud database. It is made accessible to users from the cloud and delivered on demand through Internet from a cloud server provider.
Generally, there are two common deployment models: users can run databases on the cloud independently, using a virtual machine image, or they can purchase access to a database service, maintained by a cloud database provider.
There are three common methods to run databases on the cloud:
Virtual Machine Image – It allows users to purchase virtual machines for a limited period of time. It is possible to run a database on these virtual machines. Users can either upload their own machine image with a database installed on it, or use ready-made machine images that already include an optimized installation of a database.
Database as a Service (DBaaS) – It allows user to use a database as a service, without physically launching a virtual machine instance for the database. In this configuration, application owners do not have to install and maintain the database on their own. Instead, the database service provider takes responsibility for installing and maintaining the database, and application owners pay according to their usage.
Managed Database Hosting – In this arrangement, the vendor hosts the database and manages it on the application owner’s behalf.