freeCodeCamp/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/representing-relationships-in-a-relational-database.chinese.md

id, title, challengeType, isHidden, videoId

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

Description

Tests

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