Search results
Results from the WOW.Com Content Network
Database virtualization is the decoupling of the database layer, which lies between the storage and application layers within the application stack. Virtualization of the database layer enables a shift away from the physical, toward the logical or virtual. Virtualization enables compute and storage resources to be pooled and allocated on demand.
A cloud database is a database that typically runs on a cloud computing 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 virtual machine image, or they can purchase access to a database service, maintained by a cloud database provider.
A user will typically access other component database systems by using a multidatabase language but this removes any levels of location transparency, forcing the user to have direct knowledge of the federated schema. A user imports the data they require from other component databases and integrates it with their own to form a federated schema.
Database virtualization may use a single ODBC-based DSN to provide a connection to a similar virtual database layer. [clarification needed] Alluxio, an open-source virtual distributed file system (VDFS), started at the University of California, Berkeley's AMPLab. The system abstracts data from various file systems and object stores. [citation ...
Virtuoso Universal Server is a middleware and database engine hybrid that combines the functionality of a traditional relational database management system (RDBMS), object–relational database (ORDBMS), virtual database, RDF, XML, free-text, web application server and file server functionality in a single system.
In computing, a virtual file server is a system consisting of one or more virtualized devices that store computer files such as documents, sound files, photographs, movies, images, or databases. The server can be accessed by workstations or application servers through the Virtual Fileserver Network (VFN). [1] [2] The term "server" highlights ...
The Cloud Servers API launched on July 14, 2009, under the Creative Commons Attribution 3.0 license allows clients to create, configure and control virtual servers. [19] In addition to issuing basic management commands this "enables elastic scenarios" whereby servers are instantiated and destroyed in response to fluctuating load (one of the key ...
A virtual private database or VPD masks data in a larger database so that only a subset of the data appears to exist, without actually segregating data into different tables, schemas or databases.