The level of a dimension table corresponds to number of links it needs to connect to the central fact table.

维度表的层次与它需要连接到中心事实表的连接数目有关。

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It typically has one large central table (called the fact table) and a set of smaller tables (called the dimension tables) arranged in a radial pattern around the fact table.

它通常有一个大型的中心表(称作事实表)和一组小型表(称作维度表)，维度表以放射模式围绕事实表。

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It typically has one large central table (called the fact table) and a set of smaller tables (called the dimension tables) arranged in a radial pattern around the fact table.

它通常有一个大型的中心表(称作事实表)和一组小型表(称作维度表)，维度表以放射模式围绕事实表。

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