Mainframe Applications Developer Interviews

Mainframe Applications Developer Interview Questions


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JPMorgan Chase & Co
Mainframe Applications Development Manager/Senior Developer was asked...March 19, 2009

How would you bypass change management processes to dynamically change OS JCL streams?

2 Answers

You would need to establish a baseline set of JCL procedures and identify the parameters which could change depending on the run time requirements. The domain values for all variables would need to be stored in DB2 table or a VSAM indexed file and a Stored Procedure or REXX script would need to determine what variables were required for a particular run and obtain them from the VSAM or DB2 datastore. These parameters would need to overlaid onto the templatge JCL and the resulting JCL stream would need to be submitted via the internal reader. The feasibility of this would depend on the scheduling software in use on the mainframe LPAR. Less

This may be too simple of an answer, but I would have answered the question by saying I would do this as a global change. Less


what is difference between Host variable and copybook?

1 Answers

Sql statements in cobol can use only host variables and not copybook varibles


what is SE37 Abend and how to handle it?


Db2 Pre compiler steps. How to identify and resolve SOC7 send How to handle -811 SQL error Remote MQ vs Local MQ Static vs Dynamic call VSAM Shareoptions?

Tech Mahindra

Tell abt yourself,tell abt ur current application

Duke Energy

They wanted to know what I had worked with in my past work experiences and how I used the various software tools and languages in relation to the job I was being interviewed for.


basic questions and scenerio based questions


Few SQL errors apart from from 100 and 0? Previous project experience. what is DB2 SPUFI? How to enter debug mode in CICS? Xpeditor? Syntax in SQL to fetch only first row.


why did you choose mainframes?


what is VARCHAR?

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