The database connection is now included as a resource for your application.
The database connection is added under the Connections node. To expand the connection and see the schema and database objects, click the + icons. After adding the database connection to the application resources, you can optionally contract the panel to increase the size of the Projects panel in the Application Navigator.
If you had selected the IDE Connections option while creating the connection, it would have been created in the Resource Palette, Connections panel, under the Database node, instead of in the Application Navigator.
The Resource Palette is used to manage catalogs and repository connections. Users working in a collaborative environment can share resources using catalogs. Users working alone can access the resources or groups of resources in a catalog where they are available in one place, for use with all applications.false ,,,,,,,,,,,,,,,