explain in brief what are the 3 types of vsam files?
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What are the building blocks used in vsam datasets?
In vsam why we use export-import utility?
what do you mean by the repro command?
can alternate index use in ESDS since it does not contain primary index? if yes can you explain?
Define gdg?
HOW TO SORT RECORDS IN VSAM FILE?
what will happen when you try to open an empty vsam file in a cobol program for input?
Suppose a generation of GDG gets created in a particular step of a proc. How would you refer the current generation in a subsequent step? What would be the disposition of this generation now ?
How do you calculate record size of an alternate cluster? Give your values for both unique and nonunique.
Suppose 3 generations of a GDG exist. How would you reference the 1st generation in the JCL?
what is the syntax of ams modal commands?
What is Control Interval, Control Area?