September 2002
Intermediate to advanced
1008 pages
22h 3m
English
The value of the xpath attribute of a selector element specifies a target node set for any type of identity constraint. See any listing in this chapter for an example of the selector element.
In addition to the ubiquitous id attribute, the selector element must specify an xpath, which selects a set of nodes. Table 13.8 itemizes the attributes of a selector element.
| Attribute | Description |
|---|---|
| id | The value of an id attribute uniquely identifies an element within the set of schema documents that comprise an XML schema. |
| xpath | The value of the xpath attribute determines the target node set of a corresponding XML instance. |
Read now
Unlock full access