The DAS model covers the direct attachment of storage to the platform and represents the vast majority of storage use.

DAS 模型包含到平台的直接存储附件，代表了绝大多数的存储使用。

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Having defined the model, we can now create an instance of the Relational DAS.

定义了模式之后，我们现在可以创建一个关系型DAS的实例。

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You will have seen that to use XML with SDO, you do need a XML schema file from which the XML DAS can initialize the model of types and properties, and perhaps you found that off-putting.

您已看到，为将xml与sdo配合使用，确实需要一个XML模式文件，XML DAS将通过此文件初始化类型与属性模型，或许您还会发现这有些令人不快。

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