XQUERY ATTRIBUTES()
Contents
Purpose
Used to search for an XML node in an XML file previously opened with XQUERY_OPEN() and return the complete node and its attributes
Syntax
XQUERY_ATTRIBUTES(<expC1>)
See Also
MQCLOSE(), MQCREATE(), MQCURMSGS(), MQOPEN(), MQSEND(), MQRECEIVE(), MQUNLINK(), PRINT XML(), XML, XML_DECODE(), XML_DECODE_FILE(), XML_ENCODE(), XML_GATHER(), XML_SCATTER(), XQUERY(), XQUERY_CLOSE(), XQUERY_COUNT(), XQUERY_DECODE(), XQUERY_FILE(), XQUERY_FIND(), XQUERY_NODE(), XQUERY_OPEN(), XQUERY_SELECT()
Description
The XQUERY_ATTRIBUTES() function is used to search for an XML node in an XML file previously opened with XQUERY_OPEN() and return the complete node and its attributes. The character expression <expC1> is the XML node.
XQuery functions:
The XQUERY_OPEN() function is used to open an XML file for parsing using XPath notation. After opening using XQUERY_OPEN(), the XQUERY_FIND() or XQUERY_NODE() functions can be used to find and return a specified XML node value. The XQUERY_ATTRIBUTES() function finds and returns a complete node and its attributes. XQUERY_COUNT() returns a count of a specified XML node. The XQUERY_SELECT() function provides the ability to query nodes by attribute and value. The XQUERY_CLOSE() function is closes the XML file.
The XQUERY() function is used to parse XML strings using XPath notation.
The XQUERY_FILE() function is used to parse XML files using XPath notation.
The XQUERY_DECODE() function is used to return an object from an XML string.
Example
mybooks.xml
<?xml version="1.0" encoding="UTF-8"?> <bookstore> <book category="COOKING"> <title lang="en">Pulse</title> <author>Jenny Chandler</author> <year>2013</year> <format>Hardback</format> </book> <book category="COOKING"> <title lang="en">Riverford Farm Cook Book</title> <author>Guy Watson</author> <author>Jane Baxter</author> <year>2008</year> <format>Paperback</format> </book> <book category="CHILDREN"> <title lang="en">The House At Pooh Corner</title> <author>A. A. Milne</author> <year>1928</year> <format>Hardback</format> </book> <book category="CRIME"> <title lang="en">Knots and Crosses</title> <author>Ian Rankin</author> <year>2008</year> <format>EPUB</format> </book> <book category="PHILOSOPHY"> <title lang="fr">Le mythe de Sisyphe</title> <author>Albert Camus</author> <year>1943</year> <format>Paperback</format> </book> </bookstore>
// Example using mybooks.xml xquery_open("mybooks.xml") nCount = xquery_count("/bookstore/book") for i=1 to nCount cTitle = xquery_node("/bookstore/book[&i]/title") ? cTitle oTitle = xquery_attributes("/bookstore/book[&i]/title") ? xquery_decode(oTitle) endfor xquery_close() // Results: Pulse Dynarray (refcnt=0) ( [title] => Dynarray (refcnt=1) ( [text] => Pulse [attributes] => Dynarray (refcnt=1) ( [lang] => en ) ) ) Riverford Farm Cook Book Dynarray (refcnt=0) ( [title] => Dynarray (refcnt=1) ( [text] => Riverford Farm Cook Book [attributes] => Dynarray (refcnt=1) ( [lang] => en ) ) ) The House At Pooh Corner Dynarray (refcnt=0) ( [title] => Dynarray (refcnt=1) ( [text] => The House At Pooh Corner [attributes] => Dynarray (refcnt=1) ( [lang] => en ) ) ) Knots and Crosses Dynarray (refcnt=0) ( [title] => Dynarray (refcnt=1) ( [text] => Knots and Crosses [attributes] => Dynarray (refcnt=1) ( [lang] => en ) ) ) Le mythe de Sisyphe Dynarray (refcnt=0) ( [title] => Dynarray (refcnt=1) ( [text] => Le mythe de Sisyphe [attributes] => Dynarray (refcnt=1) ( [lang] => fr ) ) )