PL/1 Interview Questions

1. What is the difference between Based and Define?
2. What are the different storage classes in PL/1?
3. What are the file formats supported in PL/1?
4. Why do you need Translate?
5. How do you include an copybook?
6. What are the ways through which you pass value to an program from JCL?
7. Difference between main program and a sub program in PL/1?
8. Pseudo Variables in PL/1?
9. Difference between Do While and Do Until?
10. What are the different datatypes in PL/1?
11. How do you handle exception in PL/1?
12. Picture clause of TIME in PL/1?
13. Explain REENTRANT?
14. What are the different options in OPTIONS?
15. What is meant by REORDER option in PL/1?

!! Important Mainframe Interview Questions !!

Some of the important Mainframe Interview Questions are listed below!!

1. Difference between STEPLIB and JOBLIB?

2. What is the use of MSGLEVEL in the job card?

3. In Which step timestamp is generated in the DB2-COBOL program compilation?

4. What is the picture clause of TIMESTAMP?

5. Difference between COMP and COMP-3?

6. What is the use of INSPECT statement?

7. How do you compare two files in COBOL?

8. What is Indexing?

9.  What is the maximum time limit in TIME parameter?

10. How to extract the duplicate records in a file?

11. How to copy only 100 records from 200th record?

12. What are the mandatory DDNAMEs required using IDCAMS utility?

13. What is the specialty of IEFBR14 utility?

14. Which utility is used to load and unload records from DB2 tables?

15. What are the ways to pass data to a COBOL program?

16. What is the use of SPLIT command in SORT utility?

17. What is the use of SUM=NONE command in SORT?

18. Difference between INREC and OUTREC?

19. Expand COBOL?

20. Explain DB2-COBOL program compilation steps?

21. While using cursor, in which command the query is executed?

22. Use of cursors?

23. What is SQLCA?

24. Difference between STOPRUN and GOBACK.

25. How do you set max-cc from a COBOL program?

 

ISPF – List Last 25 COMMAND LINE Commands

What are all the last 25 COMMAND LINE commands that you have issued from ISPFpanel ?

Solution:

Just use the command RETP. This will open the “ISPF Retrieve Panel” and will show you the commands you’ve issued.
This is an easy way to not only check what you’ve been doing but also to re-run a command without having to type it all over again.

ISPF - TIP #006

We usually search for members in a PDS by the first string of the members.
Consider this situation:
I have a PDS and I want to search it for member only by middle string of the members.
e.g. there are some members like BESTJCL1,RESTJCL2,PESTCBL1, BESTCBL2,WESTCBL3,TESTASM1,BESTASM2...etc

I want to find members which have CBL in them.How can I search and find these members?

Answer:
Use ISPF 4.12 option.
Specify the dataset to be searched and the pattern of the string.
Specify the LANG type as COB
And select the browse option.