How do you represent disjoint and overlapping constraints in an ERD with superclasses and subclasses?
- Employing a triangle for disjoint and a hexagon for overlapping
- Representing both with a diamond shape
- Using a circle for disjoint and an oval for overlapping
- Utilizing a square for disjoint and a rectangle for overlapping
Disjoint constraints in an ERD with superclasses and subclasses are represented by a square, while overlapping constraints are depicted by a circle. A diamond shape is commonly used to denote the generalization relationship between superclass and subclasses.
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