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is delete operation supported in an esds? Is rewrite operation possible in esds?
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explain in brief how you can create a vsam file?
What is the purpose of relative record data set used in vsam?
explain the differences between vsam and non-vsam files
Using alternate indexes in batch program?
Tell about the ams used in vsam?
During processing of a VSAM file, some system error occurs and it is subsequently unusable . What do you do ?
What are the different types of VSAM files available?
What is the upgrade set?
How Vsam was evolved? What was the equivalent file for ESDS,KSDS and RRDS prior to evolution? What were their disadvantages of those file which leads to evolution of ESDS,KSDS and RRDS files ?
What does the keyranges parameter in define cluster command do?
Is it slower if you access a record through alt index as compared to primary index?
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?
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