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 6867

what is filler and what is use of filler

Syntel,

3 8411

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 4744

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

Steria, TCS,

2 9712

what is the sqlcode -501

IBM, Polaris, Zeus,

5 12958

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 29830

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 5007

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 3604

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

2 6027

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

2022

How to select the duplicate rows from a table?

4 8464

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

IBM,

1 4889

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

IBM,

1 4174

what is subscript in cobol?give realtime example?

Wipro,

2 12375

what is sync clause?

DELL,

2 17841

Un-Answered Questions { MainFrame }

WHAT is STORED PROCEDURE CONCEPT IN AS400 WITH EXAMPLE?

2470

What is jcl in mainframe?

1150

what is the purpose of the verify function of idcams?

1012

What is the difference between "db2ilist" and "db2 get instance" commands in DB2 Database Server?

1239

Explain how and where is the twa size set?

1025

What Is Ddm ?

1621

How long have you been working on mainframes?

930

What is db2 bind process?

1198

what would I use uni-rexx for?

918

Is it slower if you access a record through alt index as compared to primary index?

990

How is Telon(CA-Telon) used to build map?

4559

What is database reorganization?

1069

which single rpg opcode performs both setll and reade?

1697

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...

2704

what is a keyed physical file?

1746

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