2020-04-06 14:49:56 -04:00
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---
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id: 5e7b9f180b6c005b0e76f08d
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2020-04-21 23:37:02 -05:00
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title: Representing Relationships in a Relational Database
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2020-04-06 14:49:56 -04:00
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challengeType: 11
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2020-11-27 19:02:05 +01:00
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videoId: '-orenCNdC2Q'
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2021-01-13 03:31:00 +01:00
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dashedName: representing-relationships-in-a-relational-database
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2020-04-06 14:49:56 -04:00
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---
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2020-11-27 19:02:05 +01:00
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# --question--
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2020-04-06 14:49:56 -04:00
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2020-11-27 19:02:05 +01:00
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## --text--
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2020-04-06 14:49:56 -04:00
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2020-11-27 19:02:05 +01:00
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What is a foreign key?
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2020-04-06 14:49:56 -04:00
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2020-11-27 19:02:05 +01:00
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## --answers--
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2020-05-31 13:57:09 +01:00
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2020-11-27 19:02:05 +01:00
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A key that is not supposed to be there.
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---
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A key that uses non-latin characters.
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---
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A number that points to the primary key of an associated row in a different table.
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A key that the "real world" might use to look up a row.
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## --video-solution--
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3
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2020-04-06 14:49:56 -04:00
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