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 6931

what is filler and what is use of filler

Syntel,

3 8547

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 4812

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

Steria, TCS,

2 9835

what is the sqlcode -501

IBM, Polaris, Zeus,

5 13151

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 30050

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 5082

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 3680

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

2 6143

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

2065

How to select the duplicate rows from a table?

4 8629

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

IBM,

1 4958

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

IBM,

1 4264

what is subscript in cobol?give realtime example?

Wipro,

2 12485

what is sync clause?

DELL,

2 18000

Un-Answered Questions { MainFrame }

What are foreign keys in db2?

1105

What is qmf?

960

how to access the file from prodution from changeman tool and to submit a file to production

7549

Can anyone provide me the source code for LOC(lines of code) counter written in REXX language which can run on IBM mainframe z/OS V1R4. The LOC counter should be able to count the comments,lines of code,blank lines in a COBOL program and JCL's

2673

how to define a directory and what is the structure and definition for the same?

1063

What is recovery parameters in define cluster command?

1057

Define the attribute byte?

1159

Is condition checking possible in jcl? If yes, how?

1292

difference between tsq and tdq?

1215

what is effect on receive map when

1267

Define RCT.

1212

Discuss some of the terminology of idms.

924

Explain how do you set the mdt option to on status, even if data is not entered?

1102

explain the purpose of keep and assume keywords?

1808

Difference Between Call & Sbmjob?

1293

For More Un-Answered { MainFrame } Questions Click Here