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Relation R has eight attributes ABCDEFGH. Fields of R contain only atomic values.
F ={CH→G, A→BC, B→CFH, E→A, F→EG} is a set of functional dependencies (FDs) so that F+ is exactly the set of FDs that hold for R
Q.
The relation R is
  • a)
    in INF, but not in 2NF
  • b)
    in 2NF, but not in 3NF
  • c)
    in 3NF, but not in BCNF
  • d)
    in BCNF
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
Relation R has eight attributes ABCDEFGH. Fields of R contain only ato...
A→BC,B→CFH and F→EG are partial dependencies. Hence it is in 1NF but not in 2NF
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Relation R has eight attributes ABCDEFGH. Fields of R contain only atomic values.F ={CH→G, A→BC, B→CFH, E→A, F→EG} is a set of functional dependencies (FDs) so that F+ is exactly the set of FDs that hold for RQ.The relation R isa)in INF, but not in 2NFb)in 2NF, but not in 3NFc)in 3NF, but not in BCNFd)in BCNFCorrect answer is option 'A'. Can you explain this answer?
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