freeCodeCamp/curriculum/challenges/chinese/07-scientific-computing-wit.../python-for-everybody/relational-database-design.md

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---
id: 5e7b9f180b6c005b0e76f08c
challengeType: 11
videoId: AqdfbrpkbHk
---
# --question--
## --text--
What is the best practice for how many times a piece of string data should be stored in a database?
## --answers--
0
---
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## --video-solution--
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# --hints--
# --solutions--