Data Systems
schema-on-read
structure interpreted at read (flexible)
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Data Models and Query LanguagesData SystemsMore terms from this board
- declarativesay WHAT
- impedance mismatchapp objects don't match flat tables (ORMs bridge it)
- imperativesay HOW
- localityrelated data stored together
- many-to-one / many-to-manyshared references (people → one company) — relational/graph turf
- normalizationstore each fact once, reference it by id
- one-to-manya tree (résumé → jobs)
- property graphNeo4j + Cypher
- relation/tupletable/row
- schema-on-writeDB enforces structure at write
- triple-store(subject,predicate,object) + RDF/SPARQL
- vertex/edgenode/relationship