freeCodeCamp/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/relational-databases-many-to-many-relationships.md

id	challengeType	videoId
5e7b9f190b6c005b0e76f090	11	z-SBYcvEQOc

--description--

More resources:

- Exercise: Email

- Exercise: Roster

- Exercise: Tracks

- Exercise: Twfriends

- Exercise: Twspider

--question--

--text--

Which is an example of a many-to-many relationship?

--answers--

teacher to student

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customer to order

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book to pages

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city to country

--video-solution--

1

--hints--

--solutions--