The benefit of asynchrony is achieved by overlapping the execution of the queries at the remote data sources.
异步的优点是通过在远程数据源上重叠执行查询而取得的。
The OGSI and WSRF frameworks standardize these services, as well as the interface presented by the remote data sources.
OGSI和WSRF框架对这些服务以及远程数据源提供的接口进行了标准化。
Correlate data from local tables and remote data sources, as if all the data is stored locally in the federated database.
整合来自本地表和远程数据源的数据，就好像这些数据是本地存储在联邦数据库中。
To read or modify data from remote data sources, you submit SQL queries that reference nicknames to the federated DB2 server.
为了阅读或修改远程数据源中的数据，您提交引用了昵称的SQL查询给联邦DB 2服务器。
Such queries tend to be found in reporting applications that access significant amounts of data on one or more remote data sources.
这样的查询往往可以在一些报告应用程序中发现，这种应用程序访问一个或多个远程数据源上的大量数据。
Because DB2 II presents a virtual database image of remote data sources, we didn't need to write code for each of these activities.
因为DB 2II为远程数据源提供了一个虚拟的数据库映像，所以我们不需要为每个这样的活动编写代码。
As an example of compensating for SQL limits, consider that the federated server might allow the use of larger character strings than other remote data sources allow.
举个补偿SQL限制的例子，考虑联邦服务器可能允许使用大于其他远程数据源所允许的长度的字符串。
In addition the queries which are sent to remote data sources are further optimized by the execution layer based on cache content and advanced null suppression logic.
另外，被发送到远程数据源的查询由执行层根据缓存内容和高级空抑制逻辑进行进一步优化。
Internal server attributes are key factors in determining the differences in functionality that can be supported at the federated system compared with remote data sources.
内部的服务器属性是决定联邦系统与远程数据源各自所支持的功能的不同之处的关键因素。
A trusted user mapping can only be created by a user who holds the SECADM authority to prevent users from mapping themselves to more privileged users on the remote data sources.
只有具有SECADM权限的用户才能创建可信用户映射，以防止用户将自己映射到远程数据源上具有更多权限的用户。
Having built-in facility to synchronize automatically or manually on specific conditions RIATest is fully capable of automating applications that communicate with remote data sources.
RIATest内建了按照指定条件自动或手动进行同步的功能，因此即使程序需要与远程数据源通信，RIATest也能完全胜任自动化测试的工作。
Having built-in facility to synchronize automatically or manually on specific conditions RIATest is fully capable of automating applications that communicate with remote data sources.
RIATest内建了按照指定条件自动或手动进行同步的功能，因此即使程序需要与远程数据源通信，RIATest也能完全胜任自动化测试的工作。
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