gc:ColumnRef

Reference to a column defined in an external column set or code list.

Rule: The column reference must be valid.
An application may use the CanonicalVersionUri to select a local copy of the code list or column set which contains the column definition.
Otherwise the LocationUri value(s) may be tried in order, until a valid code list or column set document (containing the necessary column definition) is retrieved.
An application must signal an error to the user if it is not able to retrieve a code list or column set document which contains the necessary column definition.

Complex type information

Content

• Sequence [1..1]
  1. Annotation [0..1]    User annotation for the referenced column.
  from group gc:IdentificationRefUriSet
  CanonicalVersionUri [1..1]    Canonical URI which serves as a unique identifier for this version.
  LocationUri [0..*]    Suggested retrieval location for this version, in genericode format.
  2. Data [0..1]    Restrictions to the data type of the referenced column.

Attributes

Used by

• Element ColumnRef