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explain the information contained in ci
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Why is it required to have a keyed directed retrieval?
1. delete is not possible in esds. why? 2. i have 10 records in a esds file and i want to delete only 1st record ..then what i have to do?.. it will not affect any sequence of the RBA. 3. why open extend is not possible in rrds vsam file?
Is it slower if you access a record through alt index as compared to primary index?
What is the catalog?
What is the use of access method services in vsam?
to use the rewrite command, how should the vsam file be opened?
How to declare the EMP Name, EMP No., DOB in VSAM KSDS file? Please explain.....
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?
explain in brief how are different versions of gdg named?
why ci and ca splits are not possible in esds and rrds?
What is the main purpose of having user catalog in vsam?
By seeing a program how we findout it is a VSAM program?
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