JCL经典面试题库
2009年03月16日 5:14 下午 | 分类：大型机｜Mainframe
JOB CONTROL LANGUAGE(JCL)
The following are the most Frequently Asked Questions (FAQS) :
Q1) What is a Generation Data Group (GDG)?
A1) Generation Data Group is a group of chronologically or functionally related datasets. GDGs are processed periodically, often by adding a new generation, retaining previous generations, and sometimes discarding the oldest generation.
什么是GDG？
GDG是一组按世代或功能划分的数据集。GDG按世代处理，加一个新的一代数据要受上一代的限制，有时会丢换最老的一代。
Q2) How is a GDG base created?
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