而在关系查询语言中，该查询表示起来将会困难得多。
This query would be much more difficult to represent in a relational query language.
与所存储的表一样，该关系查询的结果也是平面的、规则的、同构的。
Like a stored table, the result of a relational query is flat, regular, and homogeneous.
如果XML数据被分解到关系表，那么关系查询结果必须被转换回xML。
If the XML data is shredded to relational tables, relational query results must be converted back to XML.
关系查询（例如表连接）是允许的，但要通过多个连续查询才能实现。
Relational queries, such as table joins, are possible, but they are implemented by multiple sequential queries.
图12显示了包含StateCode关系的关系查询转换的映射定义。
Figure 12 shows a map definition containing a relationship lookup transformation for the StateCode relationship.
提出了一种能够把图像关系查询和基于内容查询相统一的集合代数模型。
A set algebraic model that can uni1 ~ the keywords-based relation query and content-based retrieval is presented.
XQuery没有类似于关系查询中 “between”谓词的专用功能或操作符。
XQuery does not have a special function or operator similar to the relational "between" predicate.
最后，探讨了GIS中自然语言空间关系查询请求表达的句法模式及其解析方法。
Finally, a few syntactic patterns are presented for query representation of natural-language spatial relations in GIS.
在Viper2中，这个限制已经消除了，现在可以向XQuery中嵌入的关系查询传递运行时变量。
In Viper 2, this limitation has been removed and now you are able to pass a runtime variable to a relational query embedded inside the XQuery.
第一个XML文档应用程序演示使用可视化查询生成器工具执行XML查询和关系查询，这是所有这三个应用程序都要用到的。
The first XML document application steps you through the visual query generator tool to perform both XML and relational queries that drive all three applications.
而在关系语言中，这种查询需要进行也许跨越了多个数据表和系统目录表的联接。
In a relational language, such a query would require a join that might span several data tables and system catalog tables.
请对大多数查询和动态关系使用此选项。
一旦要在给定的查询中使用关系，就可以采用热加载技术。
You can use the eager loading technique whenever you know that you will use relationships in a given query.
对于查询关系，实例数据在设计时以手动方式填充。
For lookup relationships the instance data is manually populated at design-time.
查询关系中封装映射时，可通过在运行时支持修改映射来提供可重用性和提高灵活性。
Encapsulating the mapping in a lookup relationship makes it reusable and increases flexibility by enabling modification of the mapping data at runtime.
查询关系定义业务对象属性值之间的手动填充映射。
A lookup relationship defines a manually populated mapping between business object property values.
在引出箭头上执行相同的操作将为引出的关系提供查询。
Doing the same on the outgoing arrow provide queries for outgoing relationships.
DB 2 9.7中的查询优化技术能够提高针对XML数据的关系视图的查询处理效率。
Query optimization technology in DB2 9.7 provides increased efficiency for processing queries against relational views of XML data.
这种优化特性让应用程序能够使用SQL查询通过传统的关系接口高效地查询XML数据。
This optimization feature enables applications to efficiently query XML data through a traditional relational interface with SQL queries.
创建查询关系需要进行一个额外的步骤，即预先填充实例数据。
Creating lookup relationships requires one more step which is pre-populating the instance data.
例如，邮政编码查询关系可以将电话区号“650”映射到邮政编码“94010”、“94305”等。
For example, a zip code lookup relationship might map the phone area code "650" to the zip codes "94010," "94305," and so on.
单击Details按钮，您可以查看实际的关系，以及与所选查询相关的其他设置。
By clicking the Details button, you can view the actual relationships, along with other Settings related to the selected query.
通过在源属性和目标属性之间绘制RelationshipLookup转换，即可应用查询关系。
Lookup relationships are applied by drawing a relationship Lookup transformation between a source and target property.
您可以创建StateCode查询关系，以建立州全名和代码之间的静态映射。
You can create a StateCode lookup relationship to establish a static mapping between the state full names and codes.
获得关系以及已命名查询的支持
此转换类型是ProcessServerV6.1 中新推出的，仅能将其用于身份查询关系。
This transformation type is new in Process Server V6.1; you can use it for identity lookup relationships only.
我们将研究这两个环境在应用程序代码、数据库查询和关系模式方面的差异。
We will explore the difference in the application code, database queries and the relational schemas for the two environments.
这个查询系统包括相互之间的关系，加上您所选择的查询方向和深度。
The query consists of the relationships, plus the direction and the depth that you have selected.
对于只访问表的关系列的查询，现在所需读取的页面数要远远超过未实现内联时需要读取的页面数。
Queries that only access the relational columns of the table now need to read a much larger number of pages than without inlining.
我们看一下向索引中添加子种类对以下各项的影响：XML模式、关系模式、查询和PHP应用程序代码。
Let's look at the effect of adding subcategories to the index on: XML schema, relational schema, queries, and the PHP application code.
应用推荐