UGC-NET | UGC NET CS 2015 Jun – III | Question 9

Select the ‘False’ statement from the following statements about Normal Forms:
(A) Lossless preserving decomposition into 3NF is always possible
(B) Lossless preserving decomposition into BCNF is always possible
(C) Any Relation with two attributes is in BCNF
(D) BCNF is stronger than 3NF


Answer: (B)

Explanation:

  • Lossless preserving decomposition into 3NF is always possible. True
  • Lossless preserving decomposition into BCNF is always possible. False Not always possible.
  • Any Relation with two attributes is in BCNF. True
  • BCNF is stronger than 3NF. True
  • For more information on Normal form Refer:Database Normalization | Normal Forms
    Option (B) is correct.

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