---
id: 5e7b9f190b6c005b0e76f090
title: '關係型數據庫：多對多關係'
challengeType: 11
videoId: z-SBYcvEQOc
bilibiliIds:
  aid: 291965127
  bvid: BV1Af4y1L7BK
  cid: 377543409
dashedName: relational-databases-many-to-many-relationships
---

# --description--

更多資料：

\- <a href="https://www.youtube.com/watch?v=uQ3Qv1z_Vao" target="_blank" rel="noopener noreferrer nofollow">練習：Email</a>

\- <a href="https://www.youtube.com/watch?v=qEkUEAz8j3o" target="_blank" rel="noopener noreferrer nofollow">練習：Roster</a>

\- <a href="https://www.youtube.com/watch?v=I-E7avcPeSE" target="_blank" rel="noopener noreferrer nofollow">練習：Tracks</a>

\- <a href="https://www.youtube.com/watch?v=RZRAoBFIH6A" target="_blank" rel="noopener noreferrer nofollow">練習：Twfriends</a>

\- <a href="https://www.youtube.com/watch?v=xBaJddvJL4A" target="_blank" rel="noopener noreferrer nofollow">練習：Twspider</a>

# --question--

## --text--

哪個是多對多關係的示例？

## --answers--

老師與學生

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客戶與訂單

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書與內頁

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城市與國家

## --video-solution--

1

