keyfield element keyfield--element

Content model content-model-9


Attributes attributes-9

  • @xlink (MNTOKEN)
  • @xpath (MNTOKEN)

Parents parents-9

<key> , <dbindex />

Children children-9


Description description-9

This element defines the fields to be integrated into an index or a key.

Attribute description attribute-description-9

  • xlink (MNTOKEN): lets you automatically reference foreign keys defined in the join for a relation table (N-N link).
  • xpath (MNTOKEN): definition of an index or a key on an <attribute> element. This attribute receives an Xpath which defines the path to the schema attribute that defines the key or the index.

Examples examples-

Selection of the “sName” field in an index with an Xpath on “@name”:

<keyfield xpath="@name"/>