DBMS · Question 5 · Easy
In an ER diagram (Chen notation), how is a weak entity set drawn?
- Dashed ellipse
- Double rectangle
- Diamond
- Double ellipse
Answer and explanation
Answer: B. Double rectangle
Explanation: A weak entity set is a double rectangle. A double ellipse is a multivalued attribute, a dashed ellipse is a derived attribute and a diamond is a relationship.
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