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

01 a pic 9(6) value is 123456 01 b pic 9(3) move a to b wht will be the value ?

6 11600

01 a pic 9(3) value is 123 01 b pic 9(6) move a to b wht will be the value ? and 01 a pic x(6) value is abc 01 b pic x(3) move a to b wht will be the value ?

Patni,

7 11147

where do we use dyanamic call ? and where do we use static call pls give any example pls ?

Patni,

3 7594

01 a pic 9(9v99) 01 b pic 9(9.99) wht will be the stored vales in both cases

Patni,

6 12553

what happens if job falls in loop ? how to resolve it ?

Patni,

3 10975

i created one base gdg with lrecl = 100 , now i need to create versions with different lrecl =150,200 can it be possible to create like tht ?

Patni, Syntel,

1 9919

is there any restrictions for unions ?

Patni,

4 9261

can i code union in cobol-db2 pgm ?

Patni,

4 13252

Suppose a generation of GDG gets created in a particular step of a proc. How would you refer the current generation in a subsequent step? What would be the disposition of this generation now ?

Patni,

4 8782

Size of a column has been changed in DB2 table (Suppose it was of 5 characters and later changed to 4 characters) and forgot to change the DCLGEN in COBOL program, what will happen during the execution of code? If the program Abends then what will be the error? If it doesn't abend then hpw the error can be catched?

IBM,

5 11000

I have a table with 3 dimensions like this : 01 ws-table 04 ws-page occurs 3 08 ws-column occurs 2. 12 ws-record occurs 20 pic x(40). How to code with PERFORM varying with 3 dimension...I forgot..

EDS,

2 6430

I have a JCL with 100 steps. I want run the Alternate steps in the JCL ( Like 2 ,4,6,8 etc.. ). How can I acheive this scenario? If It is by Cond Parameter can you provide the Condition code for that?

Polaris, Tech Mahindra, UST, Wipro,

5 28836

how we create binder member for updating service program and where we type this code on command line or in program ? strpgmexp pgmlvl(*current) export symbol (xyz0 endpgmexp. plz explain me this step by step .

2 6692

wht do u mean by internal reader in jcl ? wht is the use of internal reader ?

Syntel,

1 8099

wht happens if cond=true ? pls give me with an example ?

Syntel,

2 6380

Un-Answered Questions { MainFrame }

How can you find out the # of rows updated after an update statement?

1116

define the purpose of the leave operation?

1603

What is a lds (linear data set) and what is it used for?

1011

How can the attributes of one sms dataset be copied to another dataset?

1424

What is the physical storage length of the data types: date, time, timestamp in the db2 database?

1160

What is the use of member in pf?

992

do you use message subfiles? What are the necessary keywords required coding a message subfile?

1135

what are the uses of factor1, factor2 and result field for the rpg operation code parm?

1042

what how do you initialize a vsam file before any operation? A vsam with alternate index?

1016

To Add A File To The 'file Selection' Option Of A Query, The Function Key To Be Pressed Is?

1221

what is service program?

1041

what is the maximum number of record formats in dspf?

1687

What is null value in db2?

1027

how to declare a constant variable in the freeformat?

1407

Where is the vsam ksds placed?

980

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