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In ER-diagram, total participation of an entity into a relationship is shown using:

In ER-diagram, total participation of an entity into a relationship is shown using: Correct Answer Double line

Explanation:-

In ER diagram, the total participation of an entity in a relationship is represented by double lines.

Key Points

  •  Participation refers to whether an entity must participate in a relationship with another entity to exist.
  • Total participation specifies that each entity in the entity set must compulsorily participate in at least one relationship instance in that relationship set.

 Additional Information

Partial participation:- Not all entities are involved in the relationship. Partial participation is represented by single lines.

Entity:- Entities are represented by means of rectangles. Rectangles are named with the entity set they represent.

Total participation of an entity set:- 

 

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