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Referential integrity

Referential integrity is a property of data stating that all its references are valid. In the context of relational databases, it requires that if a value of one attribute (column) of a relation (table) references a value of another attribute (either in the same or a different relation), then the referenced value must exist.

Formalization, Declarative referential integrity & Overview

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Overview

Formalization

Declarative referential integrity

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Map overview Semantic statistics

Referential integrity

Nodes28
Edges27
Triples4
Avg. degree1.93
Density0.071429
Components1

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Referential integrity

Top relations

related to Declarative referential integrity · 3
Referential integrity → Declarative, DRI, SQL
is a · 1
Referential integrity → property of data stating that all its references are valid

Important terminology Word statistics

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Important terminology

table key integrity referential foreign database relational column data value another referenced must either also references sql displaystyle dri one

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Referential integrityis aproperty of data stating that all its references are valid0.90text
Referential integrityrelated to Declarative referential integrityDeclarative0.60section
Referential integrityrelated to Declarative referential integrityDRI0.60section
Referential integrityrelated to Declarative referential integritySQL0.60section

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