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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The key to modeling this type of relational data in XML is to understand all the tools you have at your disposal, and apply common sense to determine what will work best in a particular case.

在 XML 中建模这种类型的关系数据的关键是要了解您有可使用的所有工具，并应用常识来确定什么工具最适合某种特定情况。

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For each data element, LOM specifies a name, explanation, size, example value, data type, and other key details.

对于每个数据元素，LOM都规定了名称、说明、大小、示例值、数据类型以及其他重要细节。

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Key to the data transformation is the Extensible Stylesheet Language, which provides information to identify what type of device is requesting information and what kind of network it is running on.

CNN: Microsoft introduces wireless server

At the time, the federal government was also pushing hard to get companies to add so-called "key escrow" type technologies to their encryption products so that law enforcement could obtain access to encrypted data on demand.

CNN: Technology - Security flaw discovered in Network Associates PGP software