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In an ER model, what is an attribute?

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Question: In an ER model, what is an attribute?

Options:

  1. A relationship between entities
  2. A property or characteristic of an entity
  3. A unique identifier for an entity
  4. A type of database operation

Correct Answer: A property or characteristic of an entity

Solution: 

An attribute is a property or characteristic that describes an entity in an ER model.

In an ER model, what is an attribute?

Practice Questions

Q1
In an ER model, what is an attribute?
  1. A relationship between entities
  2. A property or characteristic of an entity
  3. A unique identifier for an entity
  4. A type of database operation

Questions & Step-by-Step Solutions

In an ER model, what is an attribute?
Correct Answer: Attribute
  • Step 1: Understand what an ER model is. An ER model (Entity-Relationship model) is a way to represent data and its relationships.
  • Step 2: Identify what an entity is. An entity is something that exists and can be identified, like a person, place, or thing.
  • Step 3: Learn about attributes. An attribute is a specific detail or characteristic that describes an entity.
  • Step 4: Think of an example. For a 'Person' entity, attributes could be 'Name', 'Age', and 'Address'.
  • Step 5: Remember that attributes help to provide more information about the entity.
  • Attribute – An attribute is a property or characteristic that describes an entity in an ER model.
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