A Relational to Hierarchical transformation requires a hierarchical schema to define the output hierarchy in the transformation. To use the schema in the transformation, you define a schema reference.
You can define transformation schema references in the transformation
References
view.
The Relational to Hierarchical transformation references schema objects in the Model repository. The schema objects can exist in the repository before you create the transformation.
A schema can reference additional schemas. The
References
view shows the namespace and prefix for each schema that the Relational to Hierarchical transformation references.