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What is the use of VSAM files? How to read this ?

Answers were Sorted based on User's Feedback



What is the use of VSAM files? How to read this ?..

Answer / y@$w@nth

VSAM stands for Virtual Storage Access Method.it organizes
the records in a file in different formats for faster
accessing. various vsam datasets(files) structures are

KSDS(Key Sequential Dataset)
ESDS(Entry Sequenced Dataset)
RRDS(Relative Record Dataset)

we can read the Vsam Files
sequentially,randomly,dynamically(sequential,random) based
on the organization it refers.the following are the access
methods that we can perform on vsam datasets(files)

KSDS(sequential,random,dynamic)
ESDS(sequential,random)
RRDS(sequential,random)

Is This Answer Correct ?    13 Yes 0 No

What is the use of VSAM files? How to read this ?..

Answer / dinesh

VSAM (or) VIRTUAL STORAGE ACCESS METHOD. it is faster access
to data, when comparing other access methods by the way of
Data sets ORGANIZATION. we can able to insert a records in
good way.records are physical removed while we deleting the
records and we can get the free space.

Is This Answer Correct ?    13 Yes 1 No

What is the use of VSAM files? How to read this ?..

Answer / raaj

vsam is an accessing and storing method ,which provides an
efficient way of storng and accessing file data.

Is This Answer Correct ?    4 Yes 1 No

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More VSAM Interview Questions

What is control area?

0 Answers  


explain in brief how are different versions of gdg named?

0 Answers   IBM,


How to open VSAM file from 3.4? i have millions of records and i dont want to use the print ch ids(/) command bcz it takes to much time. so if you have any another command to open this plz tell me.

2 Answers   HSBC,


How to get the last record in vsam file in cluster?

0 Answers  


The first VSAM file V1 has 2 fields A and B . There is a DB2 file which has fields E and f. We need the fields A, B , E and F to another VSAM file called V2. Kindly mention the logic in procedure division in cobol..

2 Answers   Cap Gemini,


what do you mean by a vsam split?

0 Answers   IBM,


Can we copy a sequential file to a VSAM file ? If yes, What will happen of the size of the sequential file is bigger than that of the VSAM file?

3 Answers   CTS, Verizon,


What more info you should give in the DD statement while defining the next generation of a GDG?

1 Answers   IBM,


explain how many ways you can load data in a vsam cluster?

0 Answers   IBM,


In the COBOL SELECT statement what is the ORGANIZATION for a KSDS?

4 Answers  


What are the access method services used in vsam?

0 Answers  


can we access sequential files online

4 Answers   Cap Gemini, GS,


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