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In an Entity-Relationship (ER) model, what does an entity represent?

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Question: In an Entity-Relationship (ER) model, what does an entity represent?

Options:

  1. A relationship between two tables
  2. A single piece of data
  3. A real-world object or concept
  4. A database transaction

Correct Answer: A real-world object or concept

Solution: 

In an ER model, an entity represents a real-world object or concept that can have data stored about it.

In an Entity-Relationship (ER) model, what does an entity represent?

Practice Questions

Q1
In an Entity-Relationship (ER) model, what does an entity represent?
  1. A relationship between two tables
  2. A single piece of data
  3. A real-world object or concept
  4. A database transaction

Questions & Step-by-Step Solutions

In an Entity-Relationship (ER) model, what does an entity represent?
  • Step 1: Understand that an Entity-Relationship (ER) model is a way to represent data.
  • Step 2: Know that an 'entity' is something that exists in the real world.
  • Step 3: Realize that an entity can be a person, place, thing, or idea.
  • Step 4: Understand that we can store information about these entities, like their name, age, or location.
  • Step 5: Conclude that an entity is a key part of the ER model because it helps us organize and manage data.
No concepts available.
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