INTERVIEW QUESTIONS MAINFRAME DB2 DETAILS

Question: What will happened ,if the subprogram is called second time?

Answer: Subprogram are reusable statements. If more than one program require the same statements to be repeated, then its better idea to place these statements in a new program and CALL them as subprograms. The result vary as what value u pass as parameter

They can be called as many time as the programmer wishes. These subprogram will be expanded in the main memory while execution. Thus main program space is reduced and its easy to understand the logic.

Note: Here 'St' is short for Statement. Let suppose that St2 is having 100 lines of repeatable code.

Say: ProgA is having St1, St2 , St3, St2. And ProgB is having St5, St2, St6. And ProgC is having St7, St2.

If u Observe St2 is repeated in DIFFRENT programs (ProgA/B/C) as well as WITHIN SAME prog (ProgA). So its better to place the St2 in a subprogram and then make a CALL to this SUBPROGRAM.

You can pass same/different parameters each time you make a CALL to the subprogram, even within SAME program.

Subprogram are reusable statements. If more than one program require the same statements to be repeated, then its better idea to place these statements in a new program and CALL them as subprograms. The result vary as what value u pass as parameter

They can be called as many time as the programmer wishes. These subprogram will be expanded in the main memory while execution. Thus main program space is reduced and its easy to understand the logic.

Note: Here 'St' is short for Statement. Let suppose that St2 is having 100 lines of repeatable code.

Say: ProgA is having St1, St2 , St3, St2. And ProgB is having St5, St2, St6. And ProgC is having St7, St2.

If u Observe St2 is repeated in DIFFRENT programs (ProgA/B/C) as well as WITHIN SAME prog (ProgA). So its better to place the St2 in a subprogram and then make a CALL to this SUBPROGRAM.

You can pass same/different parameters each time you make a CALL to the subprogram, even within SAME program.
Source: CoolInterview.com

If you have the better answer, then send it to us. We will display your answer after the approval.

Rules to Post Answers in CoolInterview.com:-

• There should not be any Spelling Mistakes.
• There should not be any Gramatical Errors.
• Answers must not contain any bad words.
• Answers should not be the repeat of same answer, already approved.
• Answer should be complete in itself.

Name :*
Email Id :*
Answer :*
Verification Code	Not readable? Load New Code
Enter the above shown code: *
	Inform me about updated answers to this question