Article:		What Is XQuery
Subject:		idref
Date:		2003-11-12 11:32:24
From:		Per Bothner
Response to: idref
This should get you on the right track. Note that for more complex conditions you might want to use a 'where' clause rather than a [predicate]. let $id := "sai@yahoo.com", for $paper in $doc/PAPER[@EMAILID = $id], for $author in $doc/AUTHOR[@EMAILID = $id] return <result PAPERID="{$paper/@PAPERID}"> {$author/FNAME} <result> This assumes you have a specific emailid. If you want this for all emailids, you could do: for $paper in $doc/PAPER, for $author in $doc/AUTHOR where $paper/@EMAILID = $auther/$EMAILID return <result PAPERID="{$paper/@PAPERID}"> {$author/FNAME} <result> XQuery does not have the => operator.

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