当您需要一个文件(或目录)别名时，您使用链接，目的可能是提供一个更方便、简短的路径。

You use links when you need an alias for a file (or directory), possibly to provide a more convenient or shorter path.

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目录缓存器用于存储表描述符信息，而在先前的语句中引用表、视图或别名时将使用该信息。

The catalog cache is used to store table descriptor information that is used when the tables, views, or alias have been referenced in previous statements.

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使用以下命令来创建实例别名和，并对一个远程DB 2实例目录进行分类。

Create the database alias and catalog a remote DB2 database using the following command.

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使用以下命令来创建实例别名和，并对一个远程DB 2实例目录进行分类。

Create the database alias and catalog a remote DB2 database using the following command.

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