The last factor in key selection is its impact on the fact table.

键选择中的最后一个因素就是它对事实表的影响。

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The way in which data is physically distributed across table space containers can have a significant impact on how applications that access the data perform.

数据被物理地分布到跨多个表空间容器，这种方式对访问数据的应用程序执行方式产生重大影响。

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For instance: does a large number of extents for a table space really have a measurable negative performance impact?

例如：大范围的表空间是否具有可衡量的负面的性能影响？

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