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By seeing a program how we findout it is a VSAM program?
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Answer Posted / sorna
For KSDS and RRDS file can be idetified by organisation/Key
clause.For ESDS files we need look in to assign to AS-ddname
(ddname used in JCL).
| Is This Answer Correct ? | 11 Yes | 0 No |
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What is the purpose of having vsam data space?
What are the access method services used in vsam?
what do you mean by idcams? Explain its purpose?
Explain the significance of the shareoptions parameter?
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.
what do you mean by a vsam split?
how do you define an altindx ? How do you use altindxs in batch, cics programs?
Would you specify freespace ce for an esds?
Differentiate between ci split and ca split?
explain how do you define a gdg in vsam?
Using alternate indexes in batch program?
In a KSDS file, key is missing for one record. How to insert the key for that particular record from back up file. Is there any sorting needed for the back up file before the key insertion?
is it necessary that all versions of the gdg have to be of the same record length?
Differentiate between control interval (ci) and control area (ca)?
what is buffering and how does it apply to vsam files ?
