---
id: 5e7b9f180b6c005b0e76f08d
title: Representing Relationships in a Relational Database
challengeType: 11
videoId: -orenCNdC2Q
---

## Description
<section id='description'>

</section>

## Tests
<section id='tests'>

```yml
question:
  text: |
    What is a foreign key?

  answers:
    - |
        A key that is not supposed to be there.
    - |
        A key that uses non-latin characters.
    - |
        A number that points to the primary key of an associated row in a different table.
    - |
        A key that the "real world" might use to look up a row.
  solution: 3
```

</section>