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  9. Q197

ibps-so 2025 · Question 197 of 271

What is the primary purpose of domain constraints in a relational database?

  1. AIt assigns rules about which values are allowed to be entered in a column.Correct
  2. BIt makes sure that no NULL values are allowed in any row.
  3. CIt ensures that every row has a unique primary key.
  4. DIt links two tables using common columns.
  5. EIt automatically fills a default value when none is provided.

Answer: A. It assigns rules about which values are allowed to be entered in a column.

Official answer key verified. Detailed explanation coming soon.

Source: IBPS SO IT Officer Mains Memory Based 2025 (held Jan 2026) - Adda247 · memory-based

← Q196View full paper (271 questions)Q198 →

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