e the correct answerWhich forms are based on the concept of functional dependency:Options1NF3NF2NF4NF
Question
e the correct answerWhich forms are based on the concept of functional dependency:Options1NF3NF2NF4NF
Solution
The forms that are based on the concept of functional dependency are:
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1NF (First Normal Form): This form ensures that each attribute in a relation contains only atomic values and there are no repeating groups or arrays of values.
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2NF (Second Normal Form): This form builds upon 1NF and ensures that all non-key attributes are fully dependent on the entire primary key. In other words, there should be no partial dependencies.
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3NF (Third Normal Form): This form further refines the concept of functional dependency by eliminating transitive dependencies. It ensures that all non-key attributes are dependent only on the primary key and not on any other non-key attributes.
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4NF (Fourth Normal Form): This form deals with multi-valued dependencies and ensures that there are no non-trivial multi-valued dependencies between attributes.
So, the correct answer is options 1NF, 2NF, 3NF, and 4NF.
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 4th Normal Form is based on :OptionsRemoving Transitive DependenciesRemoving Partial DependenciesRemoving multiple overlapping candidate keysRemoving Multivalued dependency
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
Choose the correct answerWhich forms has a relation that possesses data about an individual entity:Options2NF4NF5NF3NF
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