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Showing posts with label File Status. Show all posts
Showing posts with label File Status. Show all posts
Wednesday, 10 April 2019

VSAM - Virtual Storage Access Method Concepts.

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Virtual Storage Access Method which is popularly known as VSAM.  VSAM is one of several access methods in z/OS. It applies only to data ...
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Saturday, 6 April 2019

Top 20 Interview Questions for VSAM (Virtual Storage Access Method)

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Top 20 Interview Questions for VSAM. Q. What are the types of VSAM DataSets? A. Entry sequenced Data...
Monday, 28 July 2014

COBOL File I/O Modes: INPUT, OUTPUT, I-O, and EXTEND

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A batch job often fails before the first business rule runs because the file was opened in the wrong mode. A program that needs to read...

COBOL Indexed File Organization: RECORD KEY and READ Examples

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A customer inquiry screen usually cannot read a file from the first record until it finds account 000417. The program needs to place a ...
Sunday, 4 August 2013

VSAM Control Interval

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Control Interval Control Interval in VSAM is a unit of data that is transferred when an I/O request is made between auxiliary storag...
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