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he / src / use-cases / r / q8.xq @ a31dd97a

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let $item := doc("items.xml")//item_tuple
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  [end_date >= xs:date("1999-03-01") and end_date <= xs:date("1999-03-31")]
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return
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    <item_count>
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      { 
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        count($item) 
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      }
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    </item_count>
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