Do you need an auto-increment key in all cases?

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ArrayPop2020-01-10 20:12:33

Database

ArrayPop, 2020-01-10 20:12:33

Do you need an auto-increment key in all cases?

I have 2 tables post_categories and post_category_translations. In the second table, all records are fully related to the first and are called by the post_category_id column, that is, the auto-increment of the post_category_translations table is not used anywhere at all. Is it obligatory to put it under any circumstances?

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