Friday, February 24, 2012

Help with XQuery

I'm trying to do my "Hello World" in XQuery and running into problems. Maybe you can advise.

DECLARE @.MyXML xml

SET @.MyXML = '<?xml version="1.0" encoding="ISO-8859-1" ?>

<bookstore><book category="COOKING">

<title lang="en">Everyday Italian</title>

<author>Giada De Laurentiis</author>

<year>2005</year>

<price>30.00</price>

</book><book category="CHILDREN">

<title lang="en">Harry Potter</title>

<author>J K. Rowling</author>

<year>2005</year>

<price>29.99</price>

</book><book category="WEB">

<title lang="en">XQuery Kick Start</title>

<author>James McGovern</author>

<author>Per Bothner</author>

<author>Kurt Cagle</author>

<author>James Linn</author>

<author>Vaidyanathan Nagarajan</author>

<year>2003</year>

<price>49.99</price>

</book><book category="WEB">

<title lang="en">Learning XML</title>

<author>Erik T. Ray</author>

<year>2003</year>

<price>39.95</price>

</book>

</bookstore>'

When I run this query in sql 2005 Query Editor I get the error message:

Msg 9332, Level 16, State 1, Line 41

XQuery [query()]: Syntax error near 'data', expected 'where', '(stable) order by' or 'return'.

SELECT @.myXml.query('

<booklist>

{

for $p in /bookstore/

where data($p/@.price) > 30.00

order by $p/title[1]

return $p/@.price

}

</booklist>

Any help appreciated,

Barkingdog

I assume you want to list all the book price > 30.00, order by book's title. If so, here is the query

SELECT @.myXml.query('

<booklist>

{

for $p in /bookstore/book

where data($p/price) > 30.00

order by $p/title[1]

return $p/price

}

</booklist>')

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