When constructing a database, two rules are followed by the database designer to ensure the integrity of keys

When constructing a database, two rules are followed by the database designer to ensure the integrity of keys. Describe each rule and discuss common violations. All tables in any system must save data for a solitary entity. Any entity typically reveals a real-life event or object. Instances of objects can be consumers, inventory items, and employees etc. Tables into the database are constructed from the columns and rows. To hold on to the relational model, every row and column should be identified from a unique or distinctive identifier.

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