Database normalization aims to avoid unnecessarily duplicating data and improve management through specific rules called normal forms, which, once explained clearly, are manageable.
The first normal form requires that each field in a table holds only a single piece of information, such as separating first names from last names.
Problems arise when data is stored in a single field; for instance, addresses may hinder filtering by country if not divided into separate fields.
To ensure scalability and prevent issues, it’s critical to avoid groups of columns with similar purposes, as adding more fields for authors can become cumbersome.
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