VSAM Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

VSAM Interview Questions

Questions Answers Views Company eMail

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?

CTS, Verizon,

3 36891

1. delete is not possible in esds. why? 2. i have 10 records in a esds file and i want to delete only 1st record ..then what i have to do?.. it will not affect any sequence of the RBA. 3. why open extend is not possible in rrds vsam file?

3 19381

if not using the 'commit' when closing VSAM file,what will happend

CSC,

5 13426

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

2 11258

How to createing new version of GDG with out loosing the data in preaves GDG version?

Patni, Satyam,

7 19856

When CISZ is declared as 4096 at cluster level,is this true that data will have 4096 and index will have default?????

Wipro,

1 14917

how to view clusters that has more than 10000 records

2 6082

By seeing a program how we findout it is a VSAM program?

TCS,

6 12243

What is the maximum number of Alternate Index ???

4 11171

How to insert values for variables that are declared as COMP-3 variables in COBOL program in an already created VSAM file.

3 9325

How to rename one vsam file as well as it's index?

BEA,

4 27091

how to see the last records in vsam dataset??

1 8095

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 8780

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 8462

can we create PS file using IDCAMS utility?

IBM,

3 13877

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Un-Answered Questions { VSAM }

Differentiate between ci split and ca split?

1012

Define gdg?

990

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.

2422

what is the meaning of dynamic processing in vsam?

1052

What is the function of entry sequenced data set?

1084

What are the different versions of gdg named?

991

What is the biggest disadvantage of using a vsam dataset?

1132

What is the purpose of control intervals in vsam?

1010

Explain the index set?

1091

What are the different dataset organizations used in vsam?

996

what do you mean by define model parameter?

1151

what is the meaning of each of the values in shareopts(2 3)?

1030

What is the purpose of idcams?

1049

What does the keyranges parameter in define cluster command do?

1051

is delete operation supported in an esds? Is rewrite operation possible in esds?

1109

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