Although TJ did a lot of work normalizing the database so that it is in third normal form (3NF),he may want to 'denormalize' it so that access might be faster.

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Denormalization is a technique used to improve performance by adding redundant data to a normalized database. It goes against the rules of normalization but can be useful in certain situations where speed is a priority over data consistency.

Although TJ Did a Lot of Work Normalizing the Database