relation/tuple

Source board

This definition comes from the board below. Open it to see the term in context.

Data Models and Query LanguagesData Systems

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