is there any lock for vsam file so that no one can update the vsam file ?

2 Answers   HCL,

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Under idcams, multiple functions can be executed, each of which returns a condition code. What will be the condition code returned to the operating system?

0 Answers  

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explain in brief what are the 3 types of vsam files?

0 Answers   IBM,

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Suppose 3 generations of a GDG exist. How would you reference the 1st generation in the JCL?

2 Answers   IBM,

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What's a LDS (Linear Data Set) and what's it used for?

1 Answers   Cap Gemini, Steria,

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How do you convert flat files to VSAM files ?

5 Answers   EDS, IBM,

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During processing of a VSAM file, some system error occurs and it is subsequently unusable . What do you do ?

1 Answers  

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What is control interval?

0 Answers  

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Do all versions of the GDG have to be of the same record length ? is it possible to ovverride the dcb of the model dataset?

2 Answers  

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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?

3 Answers  

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what how do you initialize a vsam file before any operation? A vsam with alternate index?

0 Answers   IBM,

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What is a CI, control interval?

3 Answers  

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