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.
In the case of BW InfoProviders, the InfoObjects are added, and the dimensions are added as groups. If a field does not exist yet in the target structure, the system creates it. If navigation attributes have been added to the CompositeProvider, they are not navigation attributes any more.
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.