Answer Posted / mohan

ESDS(ENTRY SEQUENCY DATASET)
KSDS(KEY SEQUENCES DATASET)
RRDS(RELATIVE RECORD DATASET)
LDS(LINEAR RECORD DATASET)

what are the codes returned by the ams (access method services) command during the execution in vsam?

765

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Explain the purpose of the file status clause in the select statement?

524

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What are the different parameters that are used in vsam?

720

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What is a ca split?

598

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What is the main function of key sequenced data set in vsam?

525

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explain the information contained in ci

601

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Explain the biggest disadvantage of using a vsam dataset?

580

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how do you create an alternate index ?

583

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What is the use of access method services in vsam?

592

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Using alternate indexes in cics program?

556

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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.

1878

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What is the main function of linear dataset?

561

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what is the use of the file status clause in the select statement in vsam?

568

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What are the information stored in ci?

574

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What are the different versions of gdg named?

563

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