Every relation without transitive functional dependencies is in 3nf. true/ false

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09-09-2022
Social Studies

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Every relation without transitive functional dependencies is in 3nf. true/ false

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Tutorconsortium315 Tutorconsortium315 · Answer 1 · 2022-09-14T07:27:12+02:00

True.

Any relationship without transitive functional dependencies falls under the 2NF category. The 3NF contains all relationships that do not have transitive functional dependencies. A partial functional dependency exists between B and C if A, B, C, and D are table columns with composite primary keys of A and B, respectively, and C and D are nonkey columns.

What is 3nf?

A database schema design strategy for relational databases known as the third normal form makes use of normalising principles to lessen data duplication, prevent data anomalies, guarantee referential integrity, and streamline data management.

When a relation has First and Second Normal Form and no non-primary-key attribute is transitively dependent on the primary key, the relation is said to have Third Normal Form (3NF). Note: If A->B and B->C are two FDs, then A->C is referred to as a transitive dependency.

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