when I use axes in my xpath queries like
“/dictionary/e/ss/s/qp/descendant::*” I got the error “Named axes are not supported”
Can anyone suggest me a trick to handle the problem.
How about this:
The XQuery implementation in Tamino 4.1 actually supports the [named] axes “attribute”, “child”, “descendant”, “descendant-or-self”, “parent” and “self”.
I hope that helps,
/dictionary/e/ss/s/qp//* query is same with /dictionary/e/ss/s/qp/descendant::*, if it they are same can you show me the ways for other axes; child and attribute… and is there any way for ancestor?
Perhaps the easiest approach is to point you to the appropriate section in the Tamino 4.1 documentation:
C:/Program Files/Software AG/Tamino/Tamino 184.108.40.206/Documentation/xquery/xq-nutsnbolts.htm#xq-nb-paths
Here is the section on Axes (for those who do not have direct access to the documentation):
Axes In XQuery, six axes are defined. Axes originate in the context node and determine the initial node sequence that will be further refined by node tests and predicates. In XQuery and XPath 2.0, you can specify a path either by the unabbreviated syntax or by a more concise abbreviated syntax. The following table lists the axes along with their direction (normal document order or reverse document order) and a short description. In the unabbreviated syntax a double colon '::' follows the name of the axis. Axis Direction Meaning attribute:: implementation-defined attached attribute nodes child:: normal immediate child nodes (default axis) descendant:: normal all descendent child nodes descendant-or-self:: normal current node and all its descendent child nodes parent:: reverse parent node (or attaching node for attribute and namespace nodes) self:: normal the current node Tamino also supports the abbreviated notation of path expressions with axes. They correspond to the unabbreviated axes, as defined in the W3C XQuery specification, as follows: Abbreviation Description no axis nodes along child:: axis satisfying node tests and optional predicates @ nodes along attribute:: axis satisfying node tests and optional predicates . self::node(), which is the current node of any type .. parent::node(), which is the empty sequence if the current node is the document node; the attaching node if the current node is an attached node (of type attribute or namespace); otherwise the parent node // /descendant-or-self::node()/, which is the absolute path at the start of an expression, or the relative path elsewhere
I hope that helps.
[This message was edited by Trevor Ford on 24 Mar 2003 at 16:28.]
[This message was edited by Trevor Ford on 24 Mar 2003 at 16:29.]