Recognises content held outside the database by reference
https://knobit.org/id/knobit/K-609
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| Context functions | Result evaluation |
|---|---|
| Knobit creation methods | AI generated, human edited |
| Knobit types | Skill |
| LCG purposes | Assessing the learner's knowledge or skill state |
| LCG purposes | Selecting an assessment task or learning activity |
| action verb | Recognises en |
| applies knowledge | Explains consistency of content stored by reference |
| assessment criterion | Flags the deficient case and passes the acceptable one. Deficient: `loan_document.file_path = '\\fs01\loans\2026\...\agreement.pdf'`; the share is reorganised and the paths point nowhere Acceptable: An object-store key whose lifecycle is tied to the row through one service, a DQ rule that every key resolves, and a statement of which store is the system of record; or a BLOB column where the volume allows it en |
| assessment method | skill-tests task: Loan application physical model on Snowflake (physical design anomaly skills) en |
| conforms to profile | https://oppekava.edu.ee/a/Knobitite_kirjeldamise_ja_seostamise_reeglid#LCG-KNOBIT-0.1 |
| dcterms:identifier | K-609 |
| dcterms:license | https://creativecommons.org/licenses/by/4.0/ |
| dcterms:source | Review checklist 04-physical, row 9; Karwin, Phantom Files en |
| expected result | The column and the consistency the database cannot guarantee en |
| owl:sameAs | https://bitbucket.org/reffa/ontology/id/knobit/data-modelling/06-physical/09 |
| rdfs:label | Recognises content held outside the database by reference en |
| schema:creativeWorkStatus | accepted |
| schema:isPartOf | Data modelling (DAMA-DMBOK2) |
| skos:altLabel | Data held outside the database by reference (physical model) en |
| skos:definition | A column holding a file path or URL to content the database does not control. Deleting the row leaves the file, deleting the file leaves the row, a rollback restores one and not the other, and backups of the two are not taken at the same moment. A deletion anomaly across two stores. en |
| skos:prefLabel | Recognises content held outside the database by reference en |
| target object | file path or URL column en |
Used by
| includes knobit | Designs a physical data model for the target platform without introducing anomalies |
|---|---|
| requires knobit | Design the physical data model |