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All the Perl that's Practical to Extract and Report

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  • In what way does a store not map well onto a relational database?

    Category
    ----------
    category_id
    category_name
    parent_category_id (may be NULL)

    Item
    ------
    item_id
    category_id

    What does it matter if this doesn't make sense for users? That's what tools and applications are for!

    The data storage/retrieval mechanism should not have anything to do with what's easy for the user.