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Databases · Integrity Constraints and Normal Forms
Official IIT answer key · IIT Delhi · Audited Aug 2026
GATE CSE 2020 Q36 · MCQ · 2 marks
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Topic notes
In GATE, Normal Forms questions test a candidate's ability to identify candidate keys, classify relational schemas into appropriate normal forms (such as 3NF and BCNF), and evaluate decomposition properties (lossless join and dependency preservation). Questions combine normal form verification with decomposition analysis, frequently formatted as multi-select questions (MSQs) requiring rigorous evaluation of all properties across both the original and decomposed relations.
Full Integrity Constraints and Normal Forms guide →All 30 questions on Integrity Constraints and Normal Forms →
Consider a relational table R that is in 3NF, but not in BCNF. Which one of the following statements is TRUE?
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