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In an ER model, what does an entity represent?

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Question: In an ER model, what does an entity represent?

Options:

  1. A relationship
  2. A table
  3. A column
  4. A constraint

Correct Answer: A table

Solution: 

In an Entity-Relationship (ER) model, an entity represents a table in the database.

In an ER model, what does an entity represent?

Practice Questions

Q1
In an ER model, what does an entity represent?
  1. A relationship
  2. A table
  3. A column
  4. A constraint

Questions & Step-by-Step Solutions

In an ER model, what does an entity represent?
Correct Answer: A table in the database
  • Step 1: Understand what an ER model is. It is a way to visually represent data and how it relates to other data.
  • Step 2: Know that an entity is a key component of the ER model.
  • Step 3: Realize that an entity represents a real-world object or concept, like a person, place, or thing.
  • Step 4: Understand that in a database, each entity corresponds to a table.
  • Step 5: Remember that the table contains data about the entity, with rows for each instance and columns for attributes.
  • Entity – An entity represents a distinct object or thing in the real world that can be identified and has attributes.
  • ER Model – An Entity-Relationship model is a diagrammatic representation of entities and their relationships in a database.
  • Database Table – In the context of databases, an entity typically corresponds to a table that holds data about that entity.
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