[xquery-talk] my question again

[fatma helmy]

dear all
i forwarded this email, i just need to know , is it
possible to do that, if not please reply with no

Let &j= <bookstore>
<book id="1">
	<title>seven years in trenton</title>
	<author>
		<firstname>joe</firstname>
		<lastname>bob</lastname>
		<degree>B.A</degree>
	</author>
	<price>12</price>

</book>
<book>
	<title>history of trenton</title>
	<author>
		<firstname>mary</firstname>
		<lastname>bob</lastname>
		<degree>PhD</degree>
		<degree>MSC</degree>
	</author>
	<price>55</price>
</book>
<book>
	<title>trenton today, trenton tomorrow</title>	
	<author>
		<firstname>toni</firstname>
		<lastname>bob</lastname>
		<degree>PhD</degree>
		<degree>MSC</degree>
	</author>
	<price>55</price>
</book>
</bookstore>

let $whrcnd = Book/author/lastname= bob and
book/price=55

I need to select count(*) from $j where $whrcnd
Group by <records of book>
The result is 2
How to transform that into xquery.




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