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freeCodeCamp/curriculum/challenges/chinese/07-scientific-computing-wit.../python-for-everybody/representing-relationships-...

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fix: QA/Infosec update and python to chinese
2020-08-13 10:00:20 +00:00
---
id: 5e7b9f180b6c005b0e76f08d
challengeType: 11
chore(learn): Applied MDX format to Chinese curriculum files (#40462)
2020-12-16 07:37:30 +00:00
videoId: '-orenCNdC2Q'
feat(curriculum): restore seed + solution to Chinese (#40683) * feat(tools): add seed/solution restore script * chore(curriculum): remove empty sections' markers * chore(curriculum): add seed + solution to Chinese * chore: remove old formatter * fix: update getChallenges parse translated challenges separately, without reference to the source * chore(curriculum): add dashedName to English * chore(curriculum): add dashedName to Chinese * refactor: remove unused challenge property 'name' * fix: relax dashedName requirement * fix: stray tag Remove stray `pre` tag from challenge file. Signed-off-by: nhcarrigan <nhcarrigan@gmail.com> Co-authored-by: nhcarrigan <nhcarrigan@gmail.com>
2021-01-13 02:31:00 +00:00
dashedName: representing-relationships-in-a-relational-database
fix: QA/Infosec update and python to chinese
2020-08-13 10:00:20 +00:00
---
chore(learn): Applied MDX format to Chinese curriculum files (#40462)
2020-12-16 07:37:30 +00:00
# --question--
fix: QA/Infosec update and python to chinese
2020-08-13 10:00:20 +00:00
chore(learn): Applied MDX format to Chinese curriculum files (#40462)
2020-12-16 07:37:30 +00:00
## --text--
fix: QA/Infosec update and python to chinese
2020-08-13 10:00:20 +00:00
chore(learn): Applied MDX format to Chinese curriculum files (#40462)
2020-12-16 07:37:30 +00:00
What is a foreign key?
fix: QA/Infosec update and python to chinese
2020-08-13 10:00:20 +00:00
chore(learn): Applied MDX format to Chinese curriculum files (#40462)
2020-12-16 07:37:30 +00:00
## --answers--
fix: QA/Infosec update and python to chinese
2020-08-13 10:00:20 +00:00
chore(learn): Applied MDX format to Chinese curriculum files (#40462)
2020-12-16 07:37:30 +00:00
A key that is not supposed to be there.
---
A key that uses non-latin characters.
---
A number that points to the primary key of an associated row in a different table.
---
A key that the "real world" might use to look up a row.
## --video-solution--
3