a named connection to a database
a standard JDBC administrative object for handling connections to a database
A handle to a source of data, such as a database. Datasources are registered with the NAS and then retrieved programmatically in order to establish connections and interact with the datasource. A datasource definition specifies how to connect to the source of data.
An Oracle Data Browser graphical representation of the tables and views that hold data in a database. See also alias, query view, synonym, table, view.