XML查询技术研究。
XML query evaluation: Execution plans and new operators.
XML查询计算：执行计划和新操作符。
The study on XML query establishes the basis for GML query.
XML查询的研究为GML查询奠定了一定的基础。
Recently, a new standards-based XML query language has been published.
最近，一种新的、基于标准的XML查询语言已经发布。
XML tasks: Develop XML query and stored procedures; design XML warehouse.
XML任务：开发XML查询与存储过程；设计XML数据仓库。
The basic structural join is a core operation in XML query processing.
基本的结构连接是XML数据库查询处理的一个核心操作。
Efficient structural join is the key operation in XML query processing.
有效的结构连接是XML查询处理的关键。
Revising XML tree model is an important method for improving XML query efficiency.
改造XML树模型是提高XML查询效率的重要方法。
An approximate XML query algorithm based on clustering of XML documents is proposed.
提出了一种基于XML文档聚类的XML近似查询算法。
An XML query processing prototype system is also designed and realized in this paper.
最后本文设计并实现了一个XML查询处理原型系统。
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。
This gives an XML query language additional degrees of freedom for dealing with missing data.
这给了XML查询语言更多自由度来处理丢失的数据。
Navigating XML queries by path expression is the common characteristic of XML query languages.
利用路径表达式导航XML查询是XML查询语言的共同特点。
Therefore, each operator in an XML query language must be well defined for all these possible inputs.
因此，应为所有这些可能的输入很好地定义XML查询语言中的每个运算符。
As the core operation in XML query processing, structural joining consumes a great deal of time.
在XML数据查询中，结构连接操作占用了大量时间。
Path expression is a common feature of XML query languages. Many indexing methods have been proposed.
路径查询是XML查询的一个主要特征，现已提出了多种XML索引方法。
This dissertation discusses the key technology of XML query pattern matching based on structural joins.
这篇论文主要讨论了基于结构化联接的XML查询模式匹配的相关关键技术。
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。
The XML Query Working Group did not draw up a formal list of the principles that guided the design of XQuery.
XML Query工作组没有起草指导XQuery设计的正式原则表。
To effectively support XML query, especially the structural query, various encoding schemes have been proposed.
为了有效支持XML查询，特别是结构查询，目前已经提出了XML数据的各种编码方案。
The common feature of the XML query languages is the use of regular path expressions (i. e. RPE) to query XML data.
各种XML查询语言的共同特点就是利用正则路径表达式(RPE)来导航XML文档的查询。
The problem I'm running into is that the above XML query is taking 30+ minutes, which is way too long in this case.
正在运行的是上面的XML查询需要30多分钟，在这种情况下这太长了。
XML Query, often abbreviated as XQuery, is a specification that's been around in one form or another for a few years now.
XML Query，通常缩写为XQuery，是一种已经以这样或那样的方式存在几年的规范。
TO retrieve a single incident report from the CROTON_DATA table requires just an XML query. Listing 4 illustrates an example query.
要从croton_data表中检索单个事件报告，只需一个XML查询即可。
One of the earliest activities of the query working group was to draw up a formal statement of requirements for an XML query language.
Query工作组的早期活动之一就是起草xml查询语言需求的正式声明。
As the core operation of XML query processing, the efficient implementation of structural join is the key to improve XML query processing.
作为XML查询处理的核心操作，结构连接操作的高效实现是提高查询处理效率的关键。
The XML Query working group, chartered in September 1999, was tasked with creating a flexible query language to extract data from XML documents.
XML Query工作组在 1999 年9 月正式成立，任务是创建一种灵活的查询语言来从 XML文档中抽取数据。
To exploit this flexibility, an XML query language must provide features for retrieving and interpreting information from these diverse sources.
为了利用这种灵活性，一个XML查询语言应该提供检索和解释不同数据源信息的特征。
Path expression is one of the core components of most XML query languages. However, there are few researches on the issue of path expression optimization.
路径表达式是XML数据查询语言的核心部分，但是目前针对路径表达式本身进行优化的研究却相对较少。
With wide adoption and development of XML as a description language for document and information, users will have more requirements for performance of XML query.
各行各业都在采用XML来描述本领域的信息，随着XML的普及，用户对XML文档查询的要求会越来越高。
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