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Data Models and Query LanguagesData Systems

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More 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-readstructure interpreted at read (flexible)
• schema-on-writeDB enforces structure at write
• triple-store(subject,predicate,object) + RDF/SPARQL