Its primary purpose is to produce LINQ-compatible object models from XSD files, giving developers some measure of static type checking while accessing XML data.

它的主要目标是从xsd文件中生成兼容LINQ的对象模型，让开发人员在访问XML数据的时候可以进行一定的静态类型检查。

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For foreign key creation, another table with a primary key with a compatible data type is required.

对于创建外键，则需要另外一个具有主键的表，且该主键具有兼容的数据类型。

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This point of view dovetails neatly with that of RELAX NG, and in fact the primary goal of DTLL is to be a means for defining data type libraries for use with RELAX NG.

这种观点与 RELAX NG 非常吻合，事实上 DTLL 的主要目标是为 RELAX NG 定义数据类型库。

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