Chapter 3 Building Conceptual and Logical Diagrams

Enabling many-to-many relationships in an LDM

In an LDM, many-to-many relationships are, by default, not permitted and are represented with an intermediary entity. If you allow many-to-many relationships, you can select the many-to-many value in the cardinalities tab.

Steps To display the many-to-many value in a LDM cardinalities tab:

  1. Select Tools → Model Options to open the Model Options dialog box.
  2. Select the Allow n-n relationships check box in the Relationship groupbox, and then click OK to return to the model.

 

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