HBase数据被建模为多维映射，其中值(表单元)通过4个键索引。
HBase data is modeled as a multidimensional map in which values (the table cells) are indexed by four keys.
区别是现在将系统的横切关注点映射到使用了投射到相关维中的多维接口的方面。
The difference is that you now map the system's crosscutting concerns to aspects that use a multidimensional interface, which is projected into the associated dimensions.
清单1给出了一个基于多维数据集模型的SQL查询示例，并展示了sql语句的各个部分如何映射到多维数据集模型中的元素？
Listing 1 gives an example of a SQL query based on a cube model and shows how the parts of the SQL statement map to the elements of the cube model.
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