VSAM Interview Questions
Questions Answers Views Company eMail

What is the difference between CI( Control Interval)and CA (Control Area)?

TCS, Infosys,

3 8201

In vsam why we use export-import utility?

3 11939

What is the maximum no. of records that can be allowed in VSAM ?

2 5696




How do you convert flat files to VSAM files ?

EDS,

5 18214

What is the maximum record length for the VSAM dataset?

Infosys,

7 14062

What is the procedure for running the batch job in mainframe?

1 3878

What do you mean by dirty read ?

5 9709

What do you mean by RDW in VSAM?

2 7313




While designing vsam files,what is the best way to choose control interval size for the data and the index?

1 4147

How vsam datasets are cataloged?

Ordain Solutions,

1 4053

What are the types of VSAM datasets?

3 5411

How are records stored in an ESDS, entry sequenced dataset?

1 3468

What is a CI, control interval?

3 3341

What are the distinctive features of a ksds, key sequenced dataset?

2 3665

What is a CA, control area?

1 2851


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Un-Answered Questions { VSAM }

write a program to read from a VSAM file , there will be a 5 records to create name. empno. resignation and address to update in a db2 table and call another program using dynamic call to find the matching fields in program 1 to update in db2 table. anybody pls send de program for dis ? thanks in advance...

1504


OPEN INPUT StudentFile READ StudentFile AT END SET EndOfStudentFile TO TRUE END-READ PERFORM UNTIL EndOfStudentFile DISPLAY StudentId SPACE StudentName SPACE CourseCode SPACE YOBirth READ StudentFile AT END SET EndOfStudentFile TO TRUE END-READ END-PERFORM CLOSE StudentFile STOP RUN what will be output

1247


what is the probability of a complete system distortion under high end low performing multiprocessor job?

1354


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.

1179


What is the use of KSDS,LDS,ESDS,RRDS??what is VRRDS?? How are all these useful in realtime scenario??Plz helpme out...Its a recent question in IGATE..

6408






In a KSDS file, key is missing for one record. How to insert the key for that particular record from back up file. Is there any sorting needed for the back up file before the key insertion?

138