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ArcGIS for Desktop Cookbook by Daniela Cristiana Docan

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Creating a relationship class

Relationships describe how the spatial/nonspatial objects are linked. In a geodatabase, the relationships are stored in relationship classes. In a relationship class, you can relate only two classes (table/feature class) from a geodatabase. Just as with a feature class, a relationship class can be created at the root level of a geodatabase or within a feature dataset.

In a relationship class, you have to decide the followings properties:

  • Name of the relationship class
  • Origin table and destination table
  • Type of relationship, which can be as follows:
    • Simple: The objects can exist independently of each other and can have any type of cardinality.
    • Composite: The objects from a destination table/feature class (child) cannot exist ...

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