What is the biggest disadvantage of using a vsam dataset?

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What is the difference between sequential files and ESDS files?

What is the difference between PS file and VSAM file?

What are the information stored in ci?

What is the main function of key-sequenced data set?

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what is the concept of IMPORT in vsam??

what is meant by dirty read in vsam?

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Suppose 3 generations of a GDG exist. How would you reference the 1st generation in the JCL?

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