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Asked: 2026-05-18T23:16:38+00:00

How should I save a list of int(s) in a web app ? I

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How should I save a list of int(s) in a web app ?

I am designing a facebook-like app and for every user I need to save the ids of his friends, so a csv in the DB I don’t think is indicated taking into account that a user cam even have 1000 friends and the database field that should contain this list is fixed, the csv may overflow that field.

Should I store these lists in local server files or is the database still the best option?

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1 Answer

  1. Editorial Team

    Many-to-many relationships are typically handled using a separate table.

    user  |  friend
---------------
1     |  2
1     |  3
2     |  3
etc

    You then use a JOIN to find out who is friends with a given user

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