根据完全计算数据立方和索引结构的特点，对基于基表的方案进行修改，演化出基于数据立方的一般型和层次预分组型两种优化方案。
According to the features of the completed computed cube and the index structure in the kernel system, two types of plans on the cube are put forward by modifying the plans on the base table.
根据完全计算数据立方和索引结构的特点，对基于基表的方案进行修改，演化出基于数据立方的一般型和层次预分组型两种优化方案。
According to the features of the completed computed cube and the index structure in the kernel system, two types of plans on the cube are put forward by modifying the plans on the base table.
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