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Asked: 2026-05-19T11:07:17+00:00

In my application, I’d like the user to select his working days. then store

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In my application, I’d like the user to select his working days. then store them in the database. Of course my application will process the users’ data like: Is today a working day for a specific user, who are the users that should work today , … etc.

My question is, what is the best practice for doing this? should I use:

  1. Bitmasking field in the users table
  2. Many to many relationships tables by creating table for days, users and days_users.
    Thank you in advance.
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1 Answer

  1. Editorial Team

    I would say that bit mask fields are a relational anti-pattern.

    A field should have a single meaningful value, otherwise you end up with querying issues – parsing the field every time you need to query using it.

    Such a field also requires extra documentation, as the values it stores are not self describing.

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