根据内存数据的特点，介绍了其数据组织方式和索引结构T树。
According to the features of main memory data, the data organizing mode and index structure Ttree are introduced.
接着，介绍了数据仓库的产生背景、概念、体系结构、数据组织方式。
Then the background, the conception, the architecture and the data structure of data warehouse are introduced.
这是因为通用数据模型没有提供相应的数据组织方式来支持企业信息的管理。
The reason is that general data model can't provide a corresponding way of data organization to support the management of enterprise information.
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