@prefix dcterms: <http://purl.org/dc/terms/> .
@prefix edu: <https://knobit.org/def/> .
@prefix knobit: <https://knobit.org/id/knobit/> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix register: <https://knobit.org/id/register/> .
@prefix schema: <https://schema.org/> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .

knobit:K-605 a edu:Knobit ;
    rdfs:label "Recognises an entity split into clone tables by value"@en ;
    dcterms:identifier "K-605" ;
    dcterms:license <https://creativecommons.org/licenses/by/4.0/> ;
    dcterms:source "Review checklist 04-physical, row 5; Karwin, Metadata Tribbles; Date & McGoveran 1994; S&W 12.6"@en ;
    skos:altLabel "Horizontal split into clone tables (physical model)"@en ;
    skos:definition "One entity stored as several tables with the same columns, split by a value: a year, a region, a status. Uniqueness and foreign keys cannot span them, a change to the split value means moving the row, and every question across values needs a union. The physical form of logical row 28."@en ;
    skos:prefLabel "Recognises an entity split into clone tables by value"@en ;
    edu:actionVerb "Recognises"@en ;
    edu:appliesKnowledge knobit:K-660 ;
    edu:assessmentCriterion "Flags the deficient case and passes the acceptable one. Deficient: `payment_2025`, `payment_2026`; `payment_identifier` unique in each but not across both; `payment_hold` cannot reference \"a payment\"; a corrected value date moves the payment between tables Acceptable: One `payment` table partitioned by `payment_value_date` in `physical_options`, keys and foreign keys unchanged. Where separate tables are unavoidable (an archive), their predicates are disjoint and written down, and uniqueness across them is a DQ rule"@en ;
    edu:assessmentMethod "skill-tests task: Loan application physical model on Snowflake (physical design anomaly skills)"@en ;
    edu:contextFunction <https://knobit.org/def/contextFunction/resultEvaluation> ;
    edu:creationMethod <https://knobit.org/def/creationMethod/aiGeneratedHumanEdited> ;
    edu:dependsOnKnobit knobit:K-528 ;
    edu:expectedResult "The tables and the value to make a column"@en ;
    edu:graphRelevance <https://knobit.org/def/graphRelevance/learnerState>,
        <https://knobit.org/def/graphRelevance/taskSelection> ;
    edu:knobitType <https://knobit.org/def/knobitType/skill> ;
    edu:targetObject "clone tables"@en ;
    schema:creativeWorkStatus "accepted" ;
    schema:isPartOf register:data-modelling .

edu:Knobit rdfs:label "Knobit"@en,
        "Knobit"@et .

knobit:K-528 rdfs:label "Recognises one entity split by value into several"@en .

knobit:K-660 rdfs:label "Explains vertical and horizontal partitioning of tables"@en .