Answer Posted / selvam a

If the VSAM file is updated in a job, then definitely there
will be a backup step prior to the update step. The backup
can be a DASD backup (using IDCAMS utility - Repro) or a
Tape backup (using ADDRSSU utility). And if the job abends,
there will be a separate JCL to delete/define this VSAM file
and restore it from the backup taken.
So by checking these utilities presence we can make sure
that JCL has a VSAM file.
More over in our system, we differentiate a vsam file by
including a 'V' as the last character of the second
qualifier Ex: XXXX.YYYV.ZZZZ
I am not sure of the other systems.

What are steplib and joblib? What for they are used?

1217

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What is the purpose of the dd keylen parameter?

1216

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Explain the purpose of dd * statement in jcl?

1064

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which utility is used a dummy utility?

1462

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In sms datasets, what is the function of the dd avgrec keyword?

1091

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is there any way to execute more than one proc in the same exec statement at the same time..?

2630

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I want to join to input files and write the matching fields on to an output file but i dont want the output file a sorted one

2448

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what is DSN parameter and DISP parameter is used for?

1145

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in ways data can be passed to a COBOL program from JCL?

1219

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What are the difference between jcl and jes?

1608

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A chkpt is the parameter coded for multi-volume qsam datasets in a dd statement. When a chkpt is coded as chkpt=eov, a checkpoint is written to the dataset specified in the sysckeov statement at the end of each volume of the input/output multi-volume dataset. State whether true or false?

1289

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Explain the purpose of dd dummy statement?

1212

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Explain the purpose of the dd keylen parameter?

1162

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what are the statements that are not valid to be included in an include statement?

1391

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Is acct parameter mandatory?

1199

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