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explain in brief why do vsam take more disk space than other utilities?
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What does the keyranges parameter in define cluster command do?
What is the device independent method to indicate where a record is stored?
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?
What is a VSAM slot?
explain the differences between vsam and non-vsam files
can we create vsam files on multiple volumes ?
Yes. Because the alternate key would first locate the primary key, which in turn locates the actual record. Needs twice the number of I/Os.
Define dynamic processing?
Explain the biggest disadvantage of using a vsam dataset?
how can you load a vsam data set with records ?
In a file(PS), we dont know how many records are there. requirement is divide half n half the records n insert into 2 another files(PS).
What is the difference between sequential files and ESDS files?
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