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3.2.04. Normal forms (1NF)

  • First Normal form (1NF)
    • Disallows multivalued attributes
    • Part of the basic relational model
  • Domain must include only atomic values
    • simple, indivisible
  • Value of attribute-tuple in extension of schema
  • t[Ai] ∈ (Ai)
‹ 3.2.03. Good or bad?up3.2.05. Normalisation (1NF) ›
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