设计数据库时必须将维度模式星型架构与IWA相结合，必须定义表格并将它们载入IWA中，以充分利用IWA的性能。
A database must be designed using a dimensional model star schema to work with IWA, and the tables must be defined and loaded into IWA to take advantage of its performance.
维度：使用维度，您能够以图表和表格的形式显示多维业务性能数据，通过这些图表和表格您可以深入地了解性能详细信息。
Dimensions: Using dimensions, you can display multidimensional business performance data in the form of charts and tables that you can drill down to see performance details.
ROLAP数据立方体是按关系表格的集合实现的(最多可达维度数目的两倍)，来代替多维阵列。
The ROLAP data cube is implemented as a collection of relational tables (up to twice as many as the number of dimensions) instead of as a multidimensional array.
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