You define the CompositeProvider by selecting other participating InfoProviders or SAP HANA views and creating assignments. This section describes assignments by union.
To add further objects to the union operation, you have the following options:
You cannot use a provider more than once in a union operation. You can use the same provider in a union operation and as the right join partner however.
This adds a join level above the existing operation. A join can only ever be created between two providers.
When a CompositeProvider is opened again, only navigation attributes that have been assigned are displayed in the Scenario tab page. To see all navigation attributes of a participating InfoProvider, choose Show Unassigned Navigation Attributes in the InfoProvider's context menu. If you want to hide it again, choose Hide Unassigned Navigation Attributes in the context menu.
If InfoObject names have been assigned to the fields of the SAP HANA view, these InfoObject names are used to create an association for the field in the CompositeProvider for SAP HANA views. When fields are assigned to the CompositeProvider, the associations are automatically set.
If a SAP HANA view contains input parameters, these are displayed, and you can edit them like normal fields. You can only assign input parameters to other input parameters. An input parameter can be compounded either with an InfoObject or with another input parameter.