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IBM MainFrame Interview Questions
Questions Answers Views Company eMail

Can anyone tell me how to handle the array beyond the limit. If we have an array or a table which can handle 5000 records but now we have to compensate 20000 records with the same array? how to handle the situation.

2 9760

Which is more efficient - the external subroutine or a copycode coded in to a NATURAL program? And Why?

Hexaware,

2 14348

We have two PS files,want to compare those files and put the duplicate records in one file. Input file 1 contains(1,2,4,9,10) Input file 2 contains (1,4,5,11,12,14,16). Help me with jcl.

6 17228

I have two questions here. 1. How to read a flat file in reverse order? 2. How to read a VSAM KSDS file in reverse order? In both the cases we donot know the total number of records.

L&T,

2 17563

What is catelog procedure and how many catelog procedure to use in one job?

Infosys,

2 8809

How to check empty file in jcl?

Infosys,

4 27354

How to pass values in jcl to cobol?

IBM, Infosys,

4 25897

Request to database but database is not available so what is was abend is raised?

UST,

2 7742

Why do we need to create an alias if we can directly use the table name? What are the benefits of referring a table name by its alias? Also, when should we go for alias and when for synonyms?

1 4218

what is the responsibility of the construction superintendent

Almco,

2221

how to convert the recors form vsam file to db2 table tru file aid

TCS,

3318

I have two input files i/p1 name id-key flag date i/p 2 name id-key date if id-key matches in the both the files then it should write the output file from i/p1 with flag 'Y'. It should be done thru JCL sort card ,Please provide the info on this. ---Note : output file should have all records from i/p1 with proper Flag.

2 6040

I have 5 steps in my jcl ,I need to execute first three steps and then 2nd step again ,4th and 5th steps if rc of 2nd step is zero

ABC,

1 4103

What is the difference between Re-Entrant and Quasi re entrant program?? By looking at the program how can you tell if its re- entrant or not??

IBM,

1 10575

Does Natural online require CICS or other TP systems to function? How does Natural interact with CICS? Thanks.

1 5008


Un-Answered Questions { IBM MainFrame }

what are decleratives in cobol?

2314


What is need of start 0? In steed of can we use anyother numerics? If we use what will happen?

1116


what methods are available for persisting records in an idms database?

901


What is amode(24), amode(31), rmode(24) and rmode(any) (applicable to only mvsesa enterprise server) ?

1279


Can ESDS files be accessed from CICS?

1264


What is the difference between dbm cfg and db cfg file in db2 ?

1599


how can you define a dataarea(DTAARA) IN RPG? Which spec you define it C-spec/D-spec?

1919


How can you validate Sql errors during cursor operation in db2 pgms and where do you code?

2271


Explain what are the optional parameters to the input dataset while loading the empty cluster with the data records?

1226


Give the definition of COMMAREA ?

1115


What is the difference between a binary search and a sequential search? What are the pertinent cobol commands?

1161


what are the differences between and exec cics xctl and an exec cics link command?

1360


What is adabas?

1100


Brief description of inline procedure of jcl.

1331


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

1338