Answer Posted / krishnan a

Using IDCAMS Utility we can create the VSAM data Set.
//jobname JOB CLASS=P,MSGCLASS=P,USER=SYSADM
//STEP1 EXEC PGM=IDCAMS
//SYSPRINT DD SYSOUT=*
//SYSOUT DD SYSOUT=*
//SYSIN DD *
DEFINE CLUSTER(NAME(SAMPLE.datasetname)-
FOR(365)-
RECORDSIZE(64,64)-
CONTROLINTERVALSIZE(1024)-
TRK(10,5)-
NOERASE-
FREESPACE(30,30)-
INDEXED-
KEYS(64,0)-
SHARE OPTION(1 3))

State the differences between vsam and non-vsam files?

1034

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What is a lds (linear data set) and what is it used for?

991

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What are the information stored in ci?

995

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is delete operation supported in an esds? Is rewrite operation possible in esds?

1091

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What is the biggest disadvantage of using a vsam dataset?

1118

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Explain about the file objects in vsam?

1029

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differentiate between sequential files and esds files in vsam?

1151

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What does the keyranges parameter in define cluster commends do?

929

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is it required that primary key values have to be unique? Do alternate key values have to be unique?

1036

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what do you mean by define model parameter?

1128

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What is the function of entry sequenced data set?

1068

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how do you define an altindx ? How do you use altindxs in batch, cics programs?

1057

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what is a base cluster in vsam?

1125

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we can define the ksds cluster by two ways by using the file-aid or by using the idcams utility. Explain them.

1307

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What is the difference between lds and esds?

1028

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