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

How to read alternative records in a pf by using rpg?

8 19061

Suppose if a physical file is having 1000 records, but i deleted 500 records from it. Here the concern is can the size of the file changes or it remains the same... kindly help me out with thorough xplanation.... Thanks in-advance...

ABC, TCS,

6 13226

How can we handle errors in RPG?

4 9796

can any one tell me what is meant by PSSR? Kindly elaborate it...

1 6171

Can someone tell me tell me what is meant by message wait...?

1 5969

Hello, I want to extend a length of field in my Display file(Subfile). Please suggest the possible steps. Thanks

3 6849

hi guys i am new for sqlrpgle, please suggest me good websites and theory and coding. plz plz its very urgent.

2616

i hav 2 logical files(L1,L2) both r derived from one physical file(P1). how can i use both the logical files in one RPG program? if yes what i have to d.

TCS,

5 12129

Hi Everyone... Under the Logical files, when am working on multiple rec format logical file, I have joined two pf's using the multiple record format logical file concept, but when i run queried the LF only the first mentioned pf records are reflecting and I am not able to see any of the field records specified under the second pf. Kindly let me know whats the reason behind this. Below is the str of LF., R rec PFILE(LOGICAA) CUSTNO CUSTNAME BILL K CUSTNO R rec1 PFILE(LOGICAA1) CUSTNO ADD K CUSTNO .....

2420

Maximum how many files declare in rpgle

TCS,

3 15835

In how many ways we can create a logical file?`

5 9414

How can we know that a trigger has been added on a PF? and what is the purpose of adding a trigger?

3 8097

Is it possible to call a subfile using CL. IF yes.. kindly help me out with explanation...?

3 9773

In how many ways a session/device error occurs,,, and what is the remedy for it?

3 18761

Our issue is there seems to be a disconnect, or no link, between our SELECT statement and our SD. We had SELECT SORT-FILE and SELECT SORT-FILE ASSIGN TO SORTWRK. ASSIGN TO SORTWRK1 SORTWRK2 SORTWRK3 SORTWRK4. with SD SORT_FILE RECORD CONTAINS 7833 CHARACTERS. In either case, at run time, the system ignored our SORTWRK# DD statements and allocated 16 sort works with the SORTWK## naming convention. Any ideas why the system does not recognize the connection? We do not even need the SORTWRK DD statements. Thanks

3024

Un-Answered Questions { MainFrame }

Highlight the difference between a symbolic map and physical map?

1190

why is as/400 called object oriented machine?

1787

List the type of locks?

988

what is the maximum number of record formats in dspf?

1748

EXPLAIN MAIN FRAME TESTING PROCESS...HOW TO FIX THE MAINFRAME BUGS?

2599

http default port 80 is used by some other production http service. How can I create an http instance on another port to run cgidev2 and my future cgi developments?

1159

How can i load all the data from a file to Table (array) in cobol.How i manage the occurs clause with out reading the file.Any options avilable ? Please can any one help me it is urgent?

2641

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

1183

What are the access method services used in vsam?

1084

What is the difference between external and global variables in COBOL?

1555

How can an in-stream dataset be terminated?

1402

What is mainframe computer /system?

1082

When would you use abend command?

1251

How does jcl specify the job to the operating system?

1316

What is meant by an attribute byte?

1108

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