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

id, title, challengeType, videoId, bilibiliIds, dashedName

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

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更多資料：

- 練習：電子郵件

- 練習：名冊

- 練習：曲目

- 練習：推特好友

- 練習：推特爬蟲

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--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