关于联邦对象的信息存储在DB 2系统编目中，在图2中也叫全局编目。

The information about federated objects is stored in the DB2 system catalogs, also known as the global catalog in Figure 2.

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这意味着每个会话都可以使用编目中保存的全局变量，但是每个会话拥有自己的私有值来操作和使用。

This means that every session can use the global variables that exist in the catalogs, but each session has its own private value that it can manipulate and use.

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创建全局变量之后，将其定义保存在编目中，并且任何会话都可以使用它们。

Once global variables are created, their definition is stored in the catalogs and any session can use them.

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