freeCodeCamp/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/relational-databases-join-operation.chinese.md

id, title, challengeType, isHidden, videoId

id	title	challengeType	isHidden	videoId
5e7b9f180b6c005b0e76f08f	Relational Databases: Join Operation	11	false	jvDw3D9GKac

Description

Tests

question:
  text: |
    When using a JOIN clause in an SQL statement, what does ON do?

  answers:
    - |
        It indicates what tables to perform the JOIN on.
    - |
        It specifies the fields to use for the JOIN.
    - |
        It indicates how the two tables are to be joined.
  solution: 3