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I am trying to implement the option of the favorite user to add an item to a list and I am in doubt as to how best to do this. The scenario is as follows, all users have access to the same list of items that is pulled from the server whenever they open the app. The user data will be saved on the server, I want to know how to do this without having to create a copy of the entire list of items for each user.
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There is no way to generate a relationship between two entities without generating a new record, in the case as it is N p/N, there will always be a data to be replicated, then your decision should be focused on whether to choose a relationship and deal with data integrity or whether to make a copy of the data not having to worry about the origin of it.
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