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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