Like SQL, XQuery lets you handle sets of documents with one query.
和SQL一样，XQuery使您通过一个查询处理一组文档。
If you know that a book has at most one price element, you can write the query using XQuery value comparisons, which force the comparison operands to be singletons.
如果知道某个book至多有一个price元素，则可以使用XQuery的值比较来编写查询，这迫使进行比较的操作数是单个数。
Subsequent portions of the query use the XQuery where clause to filter returned data further and to transform portions of the selected comments into new XML fragments.
该查询中随后的部分使用XQuerywhere子句进一步过滤返回的数据，并将选中的评论的一些部分转换成新的xml片段。
XQuery, in contrast, is designed to query documents and prepare reports.
与此相反，XQuery设计用于查询文档和准备报告。
An XML query language (XQuery) is very useful for implementing caching with feature objects.
XML查询语言(XML query language,Xquery)对于使用功能对象来实现缓存非常有用。
As with the basic changes, each query has its specification, the equivalent XQuery statement, and its result.
和基本变化一样，每个查询都有相当于XQuery语句的规范和结果。
The most generic search function is through query language, such as SQL and XQuery.
最常见的搜索功能是使用SQL和XQuery之类的查询语言。
In contrast, XQuery forces any application to formulate its query based on the tree structure of the underlying XML schema.
相反，XQuery会强制任何应用程序基于基础XML模式的树结构确定其查询模式。
So I decided to prepare two examples: a transformation example for XSLT and a query for XQuery.
所以我决定使用两个示例：一个转换示例用于XSLT，一个查询示例用于XQuery。
Use XQuery to query these documents.
使用XQuery查询这些文档。
In short, you've learned a few ways to use XQuery to query XML data stored in DB2.
简言之，您已经学会了使用XQuery查询存储在DB 2中的XML数据的几种方法。
This instructs DB2 to use its XQuery parser to process the query.
这指示DB 2使用它的XQuery解析器来处理查询。
XQuery is a powerful query language, specifically designed for querying XML data.
XQuery是一种强大的查询语言，专为查询XML数据而设计。
With information specified as an XML document, you can retrieve data with an XML query language, like XQuery.
如果信息用XML文档给出，可以用XML查询语言如XQuery检索数据。
Once again, XQuery provides not only a facility to query XML documents but also to transform them.
在这里，XQuery不仅提供一种查询XML文档的工具，并且提供一种转换这些文档的工具。
The other data query alternative that was easily available was XQuery.
另一个容易得到的数据查询方法是 XQuery。
Its native XML data type is easy to query with SQL and W3C-standard XQuery.
使用SQL和W3C标准的XQuery对其原生xml数据类型进行查询非常简单。
A new language called XQuery, which can be used to query XML documents, has been introduced to the database world.
数据库领域已经引入了一种称为XQuery的新语言，可以用它查询XML文档。
IBM provides XQuery functions that allow you to query relational data and mix and match the results with the XML from the XML-aware columns.
IBM提供的XQuery函数允许查询关系数据，并与来自支持XML的列的XML结果组合在一起。
Note: XQuery is an officially supported query language as of DB2 9.
注意：从DB 29开始，XQuery是官方支持的查询语言。
This query language is known as XQuery; version 1.0, was released in November 2005.
这种查询语言被称为XQuery；它的1.0版于2005年11月被发布。
They let you efficiently query it using XQuery, so you don't lose the structure of the document.
同时又能使用XQuery高效查询，因此不会损失文档的结构。
For this purpose, db2 provides another input function, db2-fn: sqlquery, to invoke an SQL query from within XQuery.
为此，db 2提供了另外一个输入函数db 2 - fn：sqlquery，以便在XQuery中调用sql查询。
XQuery is a query language for XML that is based on W3C standards.
XQuery是一种用于XML的查询语言，它基于W3C标准。
XQuery: a query language for XML.
XQuery：一种用于XML的查询语言。
XQuery is good if the query results need to be embedded in (and returned in) newly constructed XML documents that differ from those in the database.
如果查询结果需要嵌入在新构造的XML文档（此文档与数据库中其他 XML 文档不同）中（并以这个新文档的形式返回），那么XQuery有优势。
Using DB2 XQuery as a top-level query language.
使用DB 2XQuery作为顶层查询语言。
Programmers can now search for data using SQL or XQuery, a new query language that supports navigational (or path-based) expressions.
程序员现在可以使用SQL或XQuery搜索数据，XQuery 是一种新的查询语言，支持导航（即基于路径的）表达式。
XQuery can be used to query, transform, and publish XML.
可以使用XQuery查询、转换和发布XML。
Listing 4 shows the XQuery that performs the query and the transformation.
清单4显示了执行查询和转换的XQuery。
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