ODM2 [ODM2_DBWrench_Schema.xml]

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ReferenceMaterialExternalIdentifiers

(Table)

Columns
PK	Name	Data Type	NULLs	A/N	Default	Comment	FK
	BridgeID	Integer				Primary key for a bridge table, enabling many-to-many joins.
	ReferenceMaterialID	Integer				Foreign Key to ReferenceMaterials
	ExternalIdentifierSystemID	Integer				Foreign Key to ExternalIdentifierSystems
	ReferenceMaterialExternalIdentifier	VarChar(255)				A resolvable, globally unique ID, such as NBS-19; could be a Uniform Resource Name (URN).
	ReferenceMaterialExternalIdentifierURI	VarChar(255)				Uniform Resource Identifier (URI), preferably in the form of a persistent URL that is self-documenting.

Indexes (none)

Foreign Keys
Name	Parent Table	Child Table	Parent Columns	Child Columns
fk_RefMaterialExtIdentifiers_ExtIdentifierSystems	ODM2ExternalIdentifiers.ExternalIdentifierSystems	ODM2ExternalIdentifiers.ReferenceMaterialExternalIdentifiers	ExternalIdentifierSystemID	ExternalIdentifierSystemID
fk_RefMaterialExtIdentifiers_RefMaterials	ODM2DataQuality.ReferenceMaterials	ODM2ExternalIdentifiers.ReferenceMaterialExternalIdentifiers	ReferenceMaterialID	ReferenceMaterialID

Parent Relations (none)

Used in Diagrams

Diagram Name

ODM2ExternalIdentifers