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  9. Q278

ibps-so 2023 · Question 278 of 323

Which of the following statements is true regarding a Foreign Key in a relational database?

  1. AA foreign key uniquely identifies every record in a table.
  2. BA foreign key is primarily used to sort records in ascending order.
  3. CA foreign key establishes a relationship between two tables using referenced values.Correct
  4. DA foreign key must always contain only unique values.
  5. EA foreign key cannot contain duplicate or NULL values.

Answer: C. A foreign key establishes a relationship between two tables using referenced values.

Official answer key verified. Detailed explanation coming soon.

Source: IBPS SO IT Officer Mains Memory Based 2023 (held 28 Jan 2024) - Adda247 · memory-based

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