它是大多数程序间非查询式通信的必要构件。
It is a necessary building block for most non-query communication between programs.
设计了一种能够双向反馈信息的可查询式电能计量保护监测系统。
An interrogating system for protecting and monitoring the electric energy measurement is designed, which can be used to transmit information in two-way.
该模型的核心是一种图形查询式语言，它既具有电子教材的功能，又避免了某些缺点。
The core of the model is graphical query language, this paper has a brief presentation for the Data Model and the query language.
MF：我认为AOP是一个完全不同的概念，不过通常认为借助领域特定语言来描述横切问题应该比用普通框架的命令-查询式接口更具可读性。
MF: I think AOP is an unconnected concept, other than in the generic sense that describing aspects with a DSL may be more readable than a framework's command-query interface.
使用下列程序来变更测试套件中测试案例的顺序，测试案例所在的测试套件不是查询式测试套件或透过需求或使用者本文建立的测试套件。
Use the following procedure to change the order of test cases in a test suite that is not a query-based test suite or created from a requirement or user story.
领域特定语言能够表达人们更深层次的思想是因为，和普通的命令-查询式API相比，领域特定语言以一种更加自然的方式表述领域内的不同变化。
DSLs dive into peoples' minds here because DSLs are a natural way to express variations, in comparison to a command-query API.
这是最简单的一种olap式查询。
此查询表示显式分配到特定的WebSphereApplicationServer用户ID。
This query represents an explicit assignment to a specific WebSphere Application Server user ID.
因为查询(通过使用隐式内连接)将两个表连接，您可以从两个表中选择列。
Table and use an AS clause to name these columns for the display with the ij tool. Because the query joins these two tables (by using an implicit inner join), you can select columns from both tables.
这样，按期望的次序开始进行检索的交互式查询。
Thus, in due order I come to the interactive query for searches.
他使用一个分布式查询将信息装载到这个本地表。
He USES a distributed query to load information into this local table.
这样将显示一个带有可以运行的查询列表的弹出式菜单(图13)。
This will show a pop-up menu with a list of the queries that can be run (Figure 13).
它公开了一组全面的rest式api，允许创建、查询、更新和删除文档、视图和数据库。
It exposes a completely RESTful API that permits the creation, querying, updating, and removal of documents, views, and databases.
为了解决那个问题，OODT提供了对分布式资源的透明访问、数据恢复和查询优化功能以及分布式处理和虚拟存档。
To solve that problem, OODT provides transparent access to distributed resources, functionality for data discovery and query optimization, as well as distributed processing and virtual archives.
清单4将所有这一切放在一起构建了一个互动式查询工具，要求用户输入地名并返回可排序结果列表。
Listing 4 puts all of this together to build an interactive query tool that asks the user to input a location name and returns a sortable list of results.
通常，显式查询是一种最佳实践并且通常为首选，因为它将减少应用程序中出现微小错误的机会。
As usual, being explicit is a best practice and is generally preferred because it reduces the chances of subtle bugs appearing in your application.
最后，我们需要使用隐式类型化变量，这样就可以为变量分配查询，不必显式声明其类型。
Finally, we need implicitly typed variables, so that we can assign the query to a variable without having to declare its type explicitly.
此外，将从第1列开始访问，而不是第0列，这可能是问题的另一个根源——这进一步促使了显式查询的使用。
In addition, columns are accessed starting with 1, not 0, which can be another source for problems — this is further impetus for being explicit.
要使用表子查询，需要使用SQL操作符将嵌入式查询与布尔表达式组合在一起。
To use a table subquery, you need to use an SQL operator to combine the embedded query with a Boolean expression.
要改进性能，联合需要经常使用缓存、物理查询表(MQT)以及分布式查询优化和执行。
To improve performance, federation frequently USES caching, materialized query tables (MQTs), and distributed query optimization and execution.
在参与分布式查询的所有数据库中，各种数据类型必须定义有相同的层次结构和类型转换。
The distinct data types must have exactly the same hierarchy and casts defined in all databases participating in the distributed queries.
标量子查询是一种嵌入式查询，返回包含单个列的单个行，本质上就是单个值，该值称为标量。
A scalar subquery is an embedded query that returns a single row that contains a single column — essentially, a single value, which is known as a scalar.
对数据的查询也是在实体级别完成的，而并不需要字符串嵌入式的SQL查询，这和很多其它框架都是类似的。
Querying of data is also done at the level of entities and does not required string-embedded SQL queries, like many other frameworks.
由显式接口和查询提供的服务透明性，可以在服务和服务间的接口之间进行分离。
Service transparency was provided by explicit interface and lookup, which provided decoupling between services and the interfaces between them.
可在访问处于多个服务器实例中的数据库的子句中包含分布式查询。
You can have distributed queries inside the using clause that access databases on more than one server instance.
联邦数据库系统的用户可以对存储在联邦系统中任意位置的数据进行分布式查询，不管自己的位置在哪里，也不管数据源使用的是哪种SQL方言。
Users of a federated database system can pose distributed queries over data stored anywhere in the federated system, regardless of its location or the SQL dialect of the data source.
解析过程会将传入的V 5查询规范或任何潜在的嵌入式SQL或MDX查询转换成一个树表示。
The parsing process will convert the incoming V5 query spec and any potentially embedded SQL or MDX queries into a tree representation.
为此，您需要使用嵌入式查询，如清单5所示。
To do this, you need to use an embedded query, as shown in Listing 5.
PLINQ是一个对XML和内存对象进行并行查询的声明式的模型。
PLINQ is a declarative model for performing data parallel queries against XML and in-memory objects.
在描述对联邦系统执行的不同类型的查询和操作之前，我们首先对分布式查询的处理过程作一个概述。
Before we describe the different types of queries and operations that you can perform on your federated system, we would like to first provide an overview of how a distributed query is processed.
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