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Choose the correct answerWhich forms are based on the concept of functional dependency:Options2NF1NF3NF4NF

Question

Choose the correct answerWhich forms are based on the concept of functional dependency:Options2NF1NF3NF4NF

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Solution

All of the forms mentioned are based on the concept of functional dependency. These include:

  1. First Normal Form (1NF)
  2. Second Normal Form (2NF)
  3. Third Normal Form (3NF)
  4. Fourth Normal Form (4NF)

Each of these forms has specific rules about the kinds of functional dependencies it allows. For example, a table is in 2NF if it is in 1NF and no non-prime attribute is dependent on any proper subset of any candidate key of the table. A table is in 3NF if it is in 2NF and every non-prime attribute of the table is non-transitively dependent on every key of the table. And so on.

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Similar Questions

Which forms are based on the concept of functional dependency:a.2NFb.1NFc.3NFd.4NF

Choose the correct answerWhich of the normal form is based on multivalued dependencies?OptionsSecondFirstThirdFourth

Select the correct answerThe second Normal Form is based on :OptionsRemoving Transitive DependenciesRemoving Partial DependenciesRemoving multiple overlapping candidate keysRemoving Multivalued dependency

Choose the correct answerWhich forms has a relation that possesses data about an individual entity:Options2NF4NF5NF3NF

Choose the correct answerWhich one of the following statements about normal forms is FALSE?OptionsBCNF is stricter than 3 NFLossless, dependency–preserving decomposition into BCNF is always possibleAny relation with two attributes is BCNFLossless, dependency-preserving decomposition into 3 NF is always possible

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