A dangling relationship is an incomplete relationship that exists when only the parent or child object (entity, table, or view) is included in the subject area. When you create a subject area with fewer entities than the Main Subject Area, a stored display for that subject area may include dangling relationships. Since the Main Subject Area always includes the complete set of entities, it cannot include any dangling relationships.
By default, the relationship line for a dangling relationship is hidden. If you want to display dangling relationship lines in a stored display, select the Show Dangling Relationships check box in the General tab in the Stored Displays editor. When you create a subject area that includes dangling relationships, you may find it helpful to display the dangling relationships in one stored display and hide them in another.
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