ForeignKey inherited from CDIFDataStructure

DiscoveryDataDescriptionStructure::Classes::ForeignKey

Definition

Documentation

Original

Reference

cdi:ForeignKey

Definition

Role of a set of data structure components for content referencing purposes

Explanatory notes

Equivalent to foreign key in the relational model. It can be used in conjunction with primary key to link data structures and their related data sets.

CDIF

Definition

Role of a set of data structure components for content referencing purposes

Scope

Role of a set of cdi:RepresentedVariables for content referencing. cdi:isComposedOf is a list of RepresentedVariables in this structure; cdi:references is the PrimaryKey in another structure that this foreign key references.

Diagram

Inheritance

No generalization relationships.

Attributes

Name	Type	Multiplicity	Description
identifier	XsdAnyUri	[0..1]	Documentation Original Reference schema:identifier Definition The identifier property represents any kind of identifier for any kind of [[Thing]], such as ISBNs, GTIN codes, UUIDs etc. Schema.org provides dedicated properties for representing many of these, either as textual strings or as URL (URI) links. See [background notes](/docs/datamodel.html#identifierBg) for more details. Scope Domain: Thing (https://schema.org/Thing). Range: PropertyValue (https://schema.org/PropertyValue), Text (https://schema.org/Text), URL (https://schema.org/URL). CDIF Definition The primary identifier for the dataset; other identifiers should be listed in the sameAs field. Schema.org has three ways of encoding identifiers-- a text description, a URL, or by using the schema:PropertyValue field. The Science on Schema.org guidance strongly recommends using the PropertyValue approach. see https://github.com/ESIPFed/science-on-schema.org .... Dataset.md#identifier. Ideally, for any given data provided they would provide identifiers either all as strings or all as identifier_type. Scope @id - resolvable URI for this foreign key.

Associations

Role	Target	Multiplicity	Kind
hasForeignKey	← DataStructure	[0..*]	composition
hasForeignKey	← DimensionalDataStructure	[0..*]	composition
hasForeignKey	← WideDataStructure	[0..*]	composition
isComposedOf	→ RepresentedVariable	[1..*]	association
references	→ PrimaryKey	[0..1]	association