gdg

A GDG data set is usually referenced by using a relative version number.

数据集通常被相关版本号引用。

Within a GDG, the generations can have like or unlike DCB attributes and data set organizations.

在GDG中，数据集可以使用相同的或不同的DCB属性和数据结构。

All the data sets in a GDG are stored with the same name.

里存储的数据集有相同的名字。