Context item expressions

A context item expression consists of a single period (.). A context item expression evaluates to the item that is currently being processed, which is known as the context item. The context item can be either a node or an atomic value.

Example

The following example contains a context item expression that identifies nylon pants in the products document:

SELECT XMLQUERY ('declare namespace ipo="http://www.example.com/IPO";
 /ipo:products/product/name[. = "Nylon pants"]'
 PASSING XMLPO)
FROM T1

The result is:

<name xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xmlns:ipo="http://www.example.com/IPO">Nylon pants</name>