A relationship represents the association between two entities. The direction of the arrows represents the relationship cardinality between the source and the target entities. In this article, you can find the steps to add a relationship and descriptions about the important properties. For more information, refer to the following sections.
This section describes the steps to add a relation between the Customers and Orders entities such that zero or one Customer record corresponds to many Orders records.
To add a new relation, click the Add Relationship button on top of the model editor.
In the Add Relationship dialog box that appears, enter the name for the new relationship.
Set the relationship cardinality to '1 To 1', '1 To N', '0..1 To N', 'N To 1', and 'N To 0..1'.
Use the Bidirectional Cross Filter and Make Relation Inactive toggle buttons to
control the behavior of the relationship.
Under the Relations section, specify a source entity from the list, and choose its desired attribute.
Similarly, specify the target entity from the list, and choose its desired attribute.
Click the Add button. A newly added relation will appear in the list of relations of the data model's entity.
The following table describes the important properties of a relationship that you can set in the Data Model Designer.