1
GATE CSE 2014 Set 2
Numerical
+1
-0
The maximum number of superkeys for the relation schema $$R(E, F, G, H)$$ with $$E$$ as key is ______.
Your input ____
2
GATE CSE 2012
MCQ (Single Correct Answer)
+1
-0.3
Which of the following is TRUE?
A
Every relation in $$3NF$$ is also in $$BCNF$$
B
A relation $$R$$ is in $$3NF$$ if every non-prime attribute of $$R$$ is fully functionally dependent on every key of $$R$$
C
Every relation in $$BCNF$$ is also in $$3NF$$
D
No relation can be in both $$BCNF$$ and $$3NF$$
3
GATE CSE 2005
MCQ (Single Correct Answer)
+1
-0.3
A table has fields, $$F1, F2, F3, F4, F5,$$ with the following functional dependencies:
$$F1 \to F3.\,F2 \to F4.\,\,\,\left( {F1\,.\,F2} \right) \to F5$$ in terms of Normalization, this table is in
A
$$1NF$$
B
$$2NF$$
C
$$3NF$$
D
None of these
4
GATE CSE 2005
MCQ (Single Correct Answer)
+1
-0.3
Which one of the following statements about normal forms is FALSE?
A
$$BCNF$$ is stricter than $$3NF$$
B
Lossless, dependency $$-$$ preserving decomposition into $$3NF$$ is always possible
C
Lossless, dependency - preserving decomposition into $$BCNF$$ is always possible
D
Any relation with two attributes is in $$BCNF$$
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