The essence of normalization is taking a relation that is not in BCNF and breaking it into multiple relations such that each one is in BCNF.

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The statement accurately describes the essence of normalization, which is to break down a relation into multiple relations that meet higher levels of normal form, with the ultimate goal of reducing redundancy and improving data integrity. Specifically, BCNF (Boyce-Codd Normal Form) ensures that each non-trivial functional dependency in a relation is determined by a candidate key, which eliminates certain types of anomalies that can occur when redundant data is stored in a single relation.

The Essence of Normalization Is Taking a Relation That Is