I have three fields in a Variable VSAM file X(2) Y(10) occurs X times Z(02) Say for the first record X=2 then the length of the file is 2+(10*3)+2=34 second record, x=4 then 4+(10*4)+2=46 If any time if the field x is updated then the total length changes. Is it feasible? Is it

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how many ways can we open i vsam file ? like print ch ids (/) is thre any other way to open the vsam file please can any one answer ?

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What is a cluster?

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How do I declare the KSDS vsam so that I can store a reocrd with variable length?.

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Differentiate between control interval (ci) and control area (ca)?

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What do you mean by dirty read ?

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What do you mean by RDW in VSAM?

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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.

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While designing vsam files,what is the best way to choose control interval size for the data and the index?

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How do you load a VSAM data set with records ?

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is it slower if you access a record through alternative index as compared to primary index?

1 Answers   IBM,

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Explain the index set?

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