联邦服务器需要在本地执行该操作。
The federated server needs to perform this operation locally.
联邦服务器在昵称注册时获取这种信息。
The federated server retrieves this information during nickname registration.
在Server页面上，选择一个联邦服务器。
首先需要将标量子查询的结果传送到联邦服务器。
The result of the scalar subquery first needs to be transferred to the federated server.
联邦服务器允许使用富s QL方言来提交查询。
The federated server allows the use of a rich SQL dialect to submit queries.
知道这些约束有助于联邦服务器进一步简化用户查询。
Knowing such constraints can help the federated server to further simplify user queries.
应用程序通过一个受支持的编程接口与联邦服务器通信。
Applications communicate with the federated server through a supported programming interface.
联邦服务器上的BOOKSTORE1表包括如下数据。
The BOOKSTORE1 table at the federated server contains the following data.
将足以填充一个AT Q缓冲区的数据返回到联邦服务器。
Return of data to the federated server sufficient to fill a single ATQ buffer.
表和视图之类的远程对象在联邦服务器上以昵称的形式注册。
Remote objects such as tables and views are registered on the federated server as nicknames.
在许多情况下，联邦服务器需要处理这些数据源实现的差异。
In many cases the federated server needs to compensate for the differences in the implementation of these data sources.
联邦服务器上的服务器属性存储每个数据源的特征。
Server attributes on the federated server store the characteristics of each data source.
应用程序通过DB 2支持的任何编程接口与联邦服务器通信。
Applications communicate with the federated server through any programming interface supported by DB2.
联邦系统的核心包括一个作为联邦服务器DB 2实例。
The core of the federated system consists of a DB2 instance that operates as a federated server.
接下来，在联邦服务器，需要将序列化后的字符串转换回xml类型。
Next, at the federated server, you need to convert the serialized string back to the XML type.
考虑在联邦服务器上，而不是在远程数据源上执行的选择谓词的影响。
Consider the effect of a selective predicate being evaluated at the federated server instead of at the remote data source.
在这个查询中，客户信息来自联邦服务器上的customers表。
In this query, the customer information is taken from the CUSTOMERS table at the federated server.
在联邦服务器上处理一部分分布式请求，弥补SQL在数据源上的限制。
Compensate for SQL limitations at the data source by processing parts of a distributed request at the federated server.
通过小心地将联邦服务器日志放置在高性能磁盘上，可以最小化这种影响。
This impact can be minimized by careful placement of the federated server logs on high-performance disks.
查询的远程操作在将结果返回到联邦服务器之前，需要执行较长时间的处理。
The queries' remote operations perform time-consuming processing before beginning to return results to the federated server.
而且，在联邦服务器上，您可以使用模式验证和xmlparse。
Also, at the federated server, you can use schema validation together with the xmlparse.
联邦服务器将这种受限版本映射到Oracle中的 DECODE函数。
The federated server maps the limited version to the DECODE function in Oracle.
联邦服务器通过名为包装器（wrappers）的软件模块与数据源通信。
The federated server communicates with the data sources by means of software modules called wrappers.
该选项表明联邦服务器是否应该考虑下推对一个关系数据源的任何SQL操作。
This option indicates whether the federated server should consider pushing down any SQL operation for a relational source.
为了降低网络传输的影响，联邦服务器和远程服务器在同一个物理系统中。
To minimize variability due to network transfers, the federation server and the remote server were located on the same physical system.
连接到联邦服务器的调用应用程序无法区分联邦存储过程和本地存储过程。
A calling application connected to the federated server cannot distinguish the federated stored procedure from a local stored procedure.
我们考虑物化查询表(MQT)支持一个重要的选项来进一步优化联邦服务器的性能。
We consider materialized query table (MQT) support an important option to further fine tune the performance of your federated server.
您可能需要在联邦服务器上执行更多的定制，以便允许更多的操作可以考虑在远程执行。
You might need to perform more customization on the federated server in order to allow more operations to be considered for remote evaluation.
为了允许查询在联邦服务器上没有相应函数的数据源上引用那些函数，就需要函数模板。
It is required to allow queries to reference those functions on the data source that do not have corresponding functions on the federated server.
为响应一个应用程序SQL语句，联邦服务器自动生成到多个数据源的分布式请求。
The federated server automatically generates distributed requests to multiple data sources in response to a single application SQL statement.
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