knobit.org

Explains Boyce-Codd normal form

edu:Knobit

https://knobit.org/id/knobit/K-557

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Context functionsObject understanding
Knobit creation methodsAI generated
Knobit typesKnowledge
LCG purposesAssessing the learner's knowledge or skill state
LCG purposesOpening up a learning outcome
action verbExplains en
assessment criterionFinds the BCNF violation in a 3NF entity with overlapping candidate keys en
assessment methodWritten question with sample entities en
conforms to profilehttps://oppekava.edu.ee/a/Knobitite_kirjeldamise_ja_seostamise_reeglid#LCG-KNOBIT-0.1
dcterms:identifierK-557
dcterms:licensehttps://creativecommons.org/licenses/by/4.0/
dcterms:sourceNormalisation theory and relational design (Codd, Fagin, Date), as used by the stage 5 reference and review checklist en
depends on knobitExplains third normal form
expected resultEvery determinant is a superkey; why a 3NF entity can still have anomalies en
owl:sameAshttps://bitbucket.org/reffa/ontology/id/knobit/data-modelling/05-logical/K-557
rdfs:labelExplains Boyce-Codd normal form en
schema:creativeWorkStatusaccepted
schema:isPartOfData modelling (DAMA-DMBOK2)
skos:definitionEvery determinant is a superkey; why a 3NF entity can still have anomalies. en
skos:prefLabelExplains Boyce-Codd normal form en
target objectBoyce-Codd normal form en

Used by

applies knowledgeRecognises a non-superkey determinant in a 3NF entity
depends on knobitExplains multivalued dependency and fourth normal form
includes knobitDerives a normalised logical data model and traces anomalies to their causes
includes knobitNormalisation
requires knobitDerive the logical data model