The main characters are subject-oriented, integrated, time-variant, and nonvolatile.
数据仓库的主要特点是面向主题性、集成性、时变性、非易失性。
An OLAP system typically adopts either a star or snowflake model, and a subject-oriented database design.
而OLAP系统通常采用星形或雪花模型和面向主题的数据库设计。
A data warehouse is a subject-oriented, integrated, non-volatile, time-variant collection of data in support of management decisions.
一个面向主题的、集成的、非易失性的、随时间变化的数据的集合,以用于支持管理层决策过程。
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