如果数据集很大，建议在DataStage而非程序集中执行联接。
If the datasets are very big, it is recommended to perform the join in DataStage rather than in the assembly.
使用相同维度的查询将同时在每个子数据集中执行，得到的结果根据虚拟数据集的合并运算符进行合并。
A query that USES the common dimensions is executed in parallel for each of the composing cubes, and the results are aggregated according to the virtual cube merge operator.
例如，EAI技术，比如代理，可以提供更集中的能力来执行用于多个应用程序或者遗留系统的适配器功能。
For example, EAI technology, such as a broker, may provide a more centralized capability to perform adaptor function for multiple applications or legacy systems.
应用推荐