选择两个用于合并成虚拟数据集的数据集。
Select the two cubes to be aggregated to form the virtual cube.
通过完成以下步骤创建虚拟数据集。
虚拟数据集的时间维度将为[Time]。
虚拟数据集上没有专门的安全性设置。
虚拟数据集不包含缓存刷新调度信息。
The virtual cubes do not have cache refresh scheduling information.
虚拟数据集包含所有可用维度的集合。
The virtual cube contains the union of all available dimensions.
在虚拟数据集中隐藏维度仅影响该虚拟数据集。
Hiding a dimension in a virtual cube only affects that virtual cube.
这仅影响虚拟数据集，而不影响包含该维度的数据集。
This only affects the virtual cube, and not the cube that contains the dimension.
在数据集上定义的计算成员在虚拟数据集中不可用。
The calculated members defined on the cubes are not available on the virtual cube.
联合服务器是一个虚拟数据库，具有关系数据库的所有功能。
The federation server is a virtual database with all of the capabilities of a relational database.
数据联合力图将数据放在其原始位置上，并创建虚拟数据库。
Data federation strives to leave data in its original location and to create what can be thought of as a virtual database.
每次启动虚拟数据集时，它都检查两个数据集并执行合并。
Each time the virtual cube is started, it checks the two cubes and performs the merge.
如果有必要的话，则要为虚拟数据集重新定义计算成员。
The calculated members need to be redefined for the virtual cube as needed.
基于多个数据源集成的数据创建单独视图或虚拟数据对象的能力。
Ability to create individual views or virtual data objects based on data integrated from multiple sources.
这是因为Slice内的虚拟数据库抽象遵循的是复合设计模式。
This is because virtual database abstraction in Slice follows a composite design pattern.
本文描述了如何创建虚拟数据集，以及合并流程的工作原理。
This article described how virtual cubes are created and how the merging process works.
对于这种情况，将通过停止和启动虚拟数据集来重新构建它。
In that case the virtual cube should be rebuilt by stopping and starting it.
仅当虚拟数据集的直接数据集启动或部署之后，才能启动或部署它。
A virtual cube can be started or deployed only after both its direct cubes are started or deployed.
如果成员仅存在一个数据集中，那么将把它添加到虚拟数据集中。
If the member exists in only one of the cubes, that member is simply added to the virtual cube.
除了级别合并之外，虚拟数据集还对子数据集的相同维度执行成员合并。
In addition to level merging, virtual cubes also perform member merging for the common dimensions of the depending cubes.
作为数据联合服务器使用者的应用程序可以与单个虚拟数据源通过接口进行通信。
An application that is a consumer of the data federation server can interface with a single virtual data source.
当数据集服务器启动时，仅当所有子数据集被实例化之后才实例化虚拟数据集。
When the cube server starts, the virtual cubes get instantiated only after all the depending cubes are instantiated.
管理员可以定义一个单独的虚拟数据库镜像，为程序员提供对不同数据的透明的访问。
Instead, administrators define a single virtual database image to provide programmers with transparent access to diverse data.
如果某个虚拟数据集的维度或成员被重命名，那么只有用户指定的名称是可用的。
If a dimension or member is renamed for the virtual cube, then the name available for the virtual cube is the user-specified one.
您还可以重命名该虚拟数据集的维度和成员，以合并所需的元素，如本文后面所述。
Dimensions and members can also be renamed for the virtual cube to cause merging on the desired elements, as described later in this article.
一些计算在定义它们的数据集上下文中执行，将它们传播到虚拟数据集可能导致意外结果。
Some calculations are made in the context of the cube on which they are defined, and propagating them to the virtual cube might produce unexpected results.
合并这两个数据集得到的虚拟数据集将同时包含2007、2008和2009这3个成员。
The virtual cube that aggregates these two cubes will have the members 2007 and 2008 merged from both cubes and also the member 2009.
使用虚拟数据访问服务层支持SOA、促进代码重用、提高编程效率和促成更灵活的软件环境。
Support SOA, promote code reuse, enhance programming productivity, and contribute to a more flexible software environment with the virtual data access services layer.
有一个虚拟数据集设计选项可以从数据集隐藏维度，隐藏的维度将不出现在虚拟数据集中。
There is a virtual cube design option to hide dimensions from the cubes so they will not exist on the virtual cube.
有一个虚拟数据集设计选项可以从数据集隐藏维度，隐藏的维度将不出现在虚拟数据集中。
There is a virtual cube design option to hide dimensions from the cubes so they will not exist on the virtual cube.
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