Knowee
Questions
Features
Study Tools

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

Question

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

🧐 Not the exact question you are looking for?Go ask a question

Solution

To determine the correct answer, we need to understand which normal form is based on multivalued dependencies.

  1. First Normal Form (1NF): This normal form deals with eliminating duplicate data and ensuring atomicity of values in a relation. It does not directly address multivalued dependencies.

  2. Second Normal Form (2NF): This normal form deals with eliminating partial dependencies by ensuring that non-key attributes depend on the entire primary key. It does not directly address multivalued dependencies.

  3. Third Normal Form (3NF): This normal form deals with eliminating transitive dependencies by ensuring that non-key attributes depend only on the primary key and not on other non-key attributes. It does not directly address multivalued dependencies.

  4. Fourth Normal Form (4NF): This normal form specifically addresses multivalued dependencies. It deals with eliminating non-key attributes that depend on other non-key attributes, resulting in a separate relation for each multivalued dependency.

Based on the above information, the correct answer is Fourth.

This problem has been solved

Similar Questions

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 forms are based on the concept of functional dependency:Options3NF2NF1NF4NF

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

If a table is in Third Normal Form (3NF), which of the following must be true?Group of answer choicesIt is in 1NF and 2NFAll attributes are functionally dependent on the primary keyAll the Available OptionsIt has no transitive dependencies

1. Normal formsWe have the attributes: {A, B, C, D, E, F, G}.Consider the following functional dependenciesA, C, F -> D, EA -> CA, C, F -> B, EF -> A, BA, C -> E, F, GA, F, G -> C, DB, C -> DB -> AThe minimal keys are:{B}{F}{A}Determine whether these functional dependencies are in the following normal form(s):Boyce Codd normal form2. Normal formsWe have the attributes: {A, B, C, D, E, F, G}.Consider the following functional dependenciesF -> E, GA, G -> C, D, EA, B -> FD -> F, GB, E, F -> D, GA, D, E -> B, FB, D, F -> A, EF, G -> B, D, EThe minimal keys are:{D}{F}{A, B}{A, G}Determine whether these functional dependencies are in the following normal form(s):Boyce Codd normal form3. Normal formsWe have the attributes: {A, B, C, D, E, F, G}.Consider the following functional dependenciesB, C, D -> E, GB -> A, ED, E -> CA, C -> B, D, EB -> C, DD, F, G -> AG -> BB, C -> FThe minimal keys are:{B}{G}{A, C}{A, D, E}Determine whether these functional dependencies are in the following normal form(s):Boyce Codd normal form4. Normal formsWe have the attributes: {A, B, C, D, E, F, G}.Consider the following functional dependenciesA, F, G -> CC, F -> GB -> C, FA, D, E -> CE, F, G -> B, CA, B, F -> D, E, GB, C -> A, DA, C, F -> GThe minimal keys are:{B}{C, E, F}{E, F, G}{A, D, E, F}Determine whether these functional dependencies are in the following normal form(s):Boyce Codd normal form5. Normal formsWe have the attributes: {A, B, C, D, E, F, G}.Consider the following functional dependenciesD -> BF -> AB, C, D -> E, FA -> GE, F -> CA, D -> E, FE, F -> GC, F -> A, EThe minimal keys are:{D, F}{C, D}{A, D}Determine whether these functional dependencies are in the following normal form(s):Boyce Codd normal form6. Normal formsWe have the attributes: {A, B, C, D, E, F, G}.Consider the following functional dependenciesC -> EE -> D, GD -> FF -> B, GF -> C, D, EG -> FC -> FC, G -> EThe minimal keys are:{A, E}{A, C}{A, F}{A, G}{A, D}Determine whether these functional dependencies are in the following normal form(s):Boyce Codd normal form

1/2

Upgrade your grade with Knowee

Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.