The value of returning XML is that clients other than browsers can interpret the data.

返回 XML 的意义在于浏览器之外的其他客户机也能解释数据。

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Sample query returning a fragment of persistent XML trade data.

返回一段永久XML交易数据的样例查询。

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None of these on their own are difficult, but they are just additional ways that XQuery provides flexibility in selecting and returning data from XML.

这些查询本身都很简单，只不过从另一个方面证明了XQuery从XML选择和返回数据的灵活性。

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