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've one sequential file, That file contains millians of Junk & CHAR recoreds example File 1 ,,,,,...,,,.....,.,.INFOSYS.....,,,,,,,,,,,WIPRO..........., ,...,..,. My questions is : I want omit the 44th posstion to 4 CHAR (WIPRO) remaining things I want output file (including Junk CHAR also)... How can we slove this problem & give me a syntax. Please provide the result as soon as possible.

CTS,

5 11284

i have two flat files.i want to select one record from that file by using jcl.for example file1 contains emp no,name,joining date. file2 has same details.emp no is primary key. i will give empno.that emp details send to outfile.please let me know if any one knows it.give sample code.

TCS,

1 7451

i would like to know under what circumstance the object will get locked on AS400.

IBM,

5 11509

How to find in aparticular step how many versions a paricular gdg base have?

TCS,

4 19361

Can we use an equated value as operand for an MVC instruction? Reason for the same

IBM,

8 13826

What are db2 error codes -305 and -407. What is the difference between these 2 error codes ?

1 7981

what r drawbacks of OPM? Why do we go for ILE RPG?

1 10931

How can I find the maximum value of a field in a file while reading the file dynamically? without using sort function. Suppose i have a file with fields Timestamp, description, teamname, teamnumber.. i have read the file till end and find the maximun value of timestamp which is not in sorted order.. can we use function max(timestamp)?

CGI,

1 13081

What are the steps to retrieve the records from Journal file...?

1 11835

I have the transaction name for cics screen.. With the transaction name, how will I find the cics program written for the transaction and BMS map program also...

CGI,

4 16501

5 rows are inserted to a DB2 Table. Next 3 of those are updated, then a rollback is issued. What would happen when the rollback is issued?

2 6377

if there is a table with huge number of records and if i want to extract only first 3 records from the table, what query i have to provide to retreive first 3 records

UST,

4 8268

Is it possible to mutliply a comp variable with an comp-3 variable. Will there be any error if i do it?

IBM, UST,

3 10300

If i have defined an temperory dataset in step2, how can i call back or use the same dataset in step5 of the same job

UST,

4 10273

i hav created a program and moved to production but failed to create the table which is been used in the program. the program shows error as soon as it is moved or installed in production or shows error during its runtime. what is the sqlcode for this error

UST,

3 7396

Un-Answered Questions { MainFrame }

can error messages as a result of a comp, range or values keyword be overridden?

2039

What is the meaning concurrency in the db2 database?

1182

how can the same proc be re-used and called by many jobs?

1574

What is the batch job?

1047

how many files, printer files you can describe in a rpg?

1191

Explain the difference between section, paragraph and sentences?

1061

Can you explain dfhmdf bms macro?

1109

what is the most common way of building queue-id of a tsq?

1141

Are scope terminators compulsory? If they are, when?

1006

is their a difference in cobol400 for the release 5.2 and 6.1 at the as400.

2623

what is the difference between udate and the system date?

2209

What is a trigger in the db2 database?

1153

What are the 2 types of parameters in dd statement?

1214

File1 has 100 records and file2 has 200 records I want to copy 50 records which are in both file into file3?

980

Why do we bind in db2?

1293

For More Un-Answered { MainFrame } Questions Click Here