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GATE | GATE CS 2020 | Question 24

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Which one of the following is used to represent the supporting many-one relationships of a weak entity set in an entity-relationship diagram ? (A) Diamonds with double/bold border (B) Rectangles with double/bold border (C) Ovals with double/bold border (D) Ovals that contain underlined identifiers

Answer: (A)

Explanation: According to Weak Entity Set in ER diagrams: The relation between one strong and one weak entity is represented by double diamond. Option (A) is correct.

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Last Updated : 26 May, 2021
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