Constructing data model is one of important steps for building data Warehouse. Multidimensional model is a conceptual model widely used in data Warehouse designing.

建立数据模型是构造数据仓库的重要步骤之一，多维数据模型是数据仓库设计中广泛采用的概念模型。

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In Venice, where the sea-level data was released, engineers are constructing a new set of tidal barriers to protect the historic city.

CNN: New satellite data reveals sea-level rise