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18 votes
18 votes

Which one of the following is used to represent the supporting many-one relationships of a weak entity set in an entity-relationship diagram?

  1. Diamonds with double/bold border 
  2. Rectangles with double/bold border
  3. Ovals with double/bold border
  4. Ovals that contain underlined identifiers
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3 Answers

Best answer
33 votes
33 votes

Answer : A 

Weak entity set is represented by Rectangles with double/bold border.

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14 votes
weak entity set represented by Rectangles with double/bold border.

weak entity relationships represented by Diamonds with double/bold border.
2 votes
2 votes

Option A 

The entity sets which do not have sufficient attributes to form a primary key are known as weak entity sets and the entity sets which have a primary key are known as strong entity sets.

Weak entity represented by rectangle double/bold border

Identifying relationship represented with Diamond double /bold border 

41 to 45

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Answer:

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