Q2 (1 points)
https://knobit.org/id/task/dm-knowledge-logical/Q2
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| dcterms:license | https://creativecommons.org/licenses/by/4.0/ |
|---|---|
| owl:sameAs | https://bitbucket.org/reffa/ontology/id/task/dm-knowledge-logical/Q2 |
| rdfs:label | Q2 (1 points) en |
| schema:hasPart | dm-knowledge-logical Q2: candidate keys and prime attributes of an account holding |
| schema:identifier | Q2 |
| schema:position | 2 |
| schema:text | Q2 (K-552, candidate keys and prime attributes of an account holding): a short answer containing {account_no, party_id} is a candidate key; {iban, party_id} is a candidate key; account_no, iban and party_id are prime; iban is prime even if not in the chosen primary key; holder_role and start_date are non-prime; candidate keys are minimal; a superkey with an extra attribute is not one. en |
Used by
| has question | Data modelling knowledge: Logical modelling and normalisation (CDMP-style questions) |
|---|---|
| schema:isPartOf | dm-knowledge-logical Q2: candidate keys and prime attributes of an account holding |