For example, you can easily write your own view class to change the way views are selected or rendered, or use a different database platform for models (the default is Ruby Sequel).

例如，你可以很容易编写自己的视图类来改变视图选择和渲染的方法，或者为模型换用另一个数据库平台(默认的Ruby的Sequel)。

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If the user selected to have the collector run the queries, the user is prompted for the database connection information (Figure 20).

如果用户选择用收集器运行查询，则提示用户数据库连接信息(图20)。

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Often selected data from a data mart is fed into a smaller database called a data cube for intensive processing.

从数据集市中经常选用的数据送入更小的数据库(叫数据体)，进行密集处理。

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