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

IBM MainFrame (5234)
IBM AS400 (1355)
IBM PL/1 (31)

MainFrame Interview Questions

Questions Answers Views Company eMail

I am getting S00F abend when i try to compare two variable of different pic class,one variable is of 9(09) and another is S9(09) comp-3. First i moved the data from S9(09) comp-3 to 9(09), but no luck. So i tried to move the data from S9(09) comp-3 to X (09) and move to 9(09). I am getting same error message, Please help me to find solution for this ptoblem. ERROR MESSAGE - "The system or user abend S00F R=NULL was issued."

1 7010

what is filler and what is use of filler

Syntel,

3 8732

Can we use group-by clause in sub-query? If 'yes' means,Will it be executed successfully or else If 'no' means why should we not using that method? Give me your suggestion please....

1 4886

how to write a jcl prog to copy alternate recs from ps1 to another ps2,suppose ps1 having 10 recs?

Steria, TCS,

2 9960

what is the sqlcode -501

IBM, Polaris, Zeus,

5 13321

Suppose I have 5 dataset listed under a single DD name in a catlogued PROC. How can I override one of those 5 dataset (say 3rd dataset)?

Cognizant,

5 30263

In a COBOL program, 2 tables TABLE1 and TABLE2 are defined that are indexed by INDEX1 and INDEX2 respectively. Can we use INDEX1 with TABLE2 and INDEX2 with TABLE1?

1 5156

I am totally confused on IMS message segments. When I create a message and it contains 5 segments does the entire message have a 32k limit or does each segment have a 32k limit? Is there a setting in the stage1 sys gen that defines if a transaction can receive/send multi-segmented messages?

1 3757

can anyone say,what is the use of operation extended H/N/P?

2 6268

I understand Join always perform better than subqueries. Then what is the advantage/use of Subqueries/correlated subqueries etc.,in DB2 programming.Please explain.

2118

How to select the duplicate rows from a table?

4 8798

what is rediffine clause?in what situation it can use?give me real time example?

IBM,

1 5049

what is rediffine clause?in what situation it can use?give me real time example?

IBM,

1 4344

what is subscript in cobol?give realtime example?

Wipro,

2 12583

what is sync clause?

DELL,

2 18148

Un-Answered Questions { MainFrame }

Why we have multiple data types in As400 and why we use numeric, packed, decimal, zoned the basic difference between this?

1181

Explain acbgen process?

1154

Explain the difference between comp & comp-3?

1025

The content of Physical file is as below: hfcftp wruquief SENDPASV 0 CDUP ASCII GET 01100901.CSV ramndk/ECP505.EC0110090 (REPLACE QUIT Thw above commands will get executed when we call STRTCPFTP from CL program.... Now if I want to use SFTP what can be the solution? plz reply in detail....Thank you for ny help... I m using RPG/ILERPG to download...

2410

What is the purpose of store statement?

880

Explain the function of job statement in jcl?

1268

How you can read the file from bottom?

1197

How do you run a COBOL batch program from a JCL? How do you run a COBOL/DB2 program?

1332

what is unit testing ? on which basis you will write test case ?

2072

what is the use of IEBGENER utility?

1232

What are the two types of fields available in ims db?

1063

Explain how to differentiate call by context by comparing it to other calls?

1248

IF I mention stop run in CICS what happens?

2432

What is CICS ?

1052

Explain about find and obtain commands?

982

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