Why is it required to have a keyed directed retrieval?
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How do you define a GDG ?
On which dataset you can have alt index?
What is the biggest disadvantage of using a vsam dataset?
There are at least seven IDCAMS commands; name and explain each of them ?.
in a cobol select statement for a ksds can you tell me what are the 3 possibilities for access?
What is a vsam dataset?
What is the function of linear dataset in vsam?
is delete operation supported in an esds? Is rewrite operation possible in esds?
what will happen when you try to open an empty vsam file in a cobol program for input?
why do we use vsam file thn seqential files ?
What are the distinctive features of a ksda, key sequenced dataset?
what is difference between repro and export? if any one know this plz tell me
COBOL 
