Title: Cubes Tutorial 1 - Getting started Date: 2011-11-18 Tags: cubes, tutorial Category: cubes Slug: cubes-tutorial-1-getting-started Author: Stefan Urbanek Summary: Cubes Tutorial 1 - Getting ...

记录一下此前未用过的CUBE和ROLLUP功能，便于日后查阅使用。 1、 Rollup 的处理机制是在完成基础数据汇总后，按从右至左的顺序，依次移除字段列表末尾的一个字段，对剩余字段进行分组聚合，并将生成的小计结果写入结果表，被移除字段的位置以 null 值填充。

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