References to the document IDs of the columns which make up the key. Only required columns can form part of a key. |
| QName | Type | Fixed | Default | Use | Inheritable | Annotation | |
|---|---|---|---|---|---|---|---|
| Ref | xsd:IDREF | required |
|
<xsd:element name="ColumnRef" maxOccurs="unbounded" type="KeyColumnRef"> <xsd:annotation> <xsd:documentation>References to the document IDs of the columns which make up the key. Only required columns can form part of a key.</xsd:documentation> </xsd:annotation> </xsd:element> |
|
key |
|
< ColumnRef Ref = "Code" /> |