Benefits of a join table vs. array to express relations? (outside of SQL)
kevincox @ kevincox @lemmy.ml Posts 6Comments 809Joined 5 yr. ago

kevincox @ kevincox @lemmy.ml
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There is no concrete difference between the two options. But in general they will be similar. I think you are talking about these options:
vs
The main difference that I see is that there is a natural place to put data about this relationship with the "join table".
You can still do this at in the second one, but you notice that you are basically heading towards an interleaved join table.
There are other less abstract concerns. Such as performance (are you always loading the list of skills, what if it is long) or correctness (if you delete a Person do you want to delete these relationships, it comes "for free" if they are stored on the Person) But which is better will depend on your use case.