Can a Sub program call another program?

komal · New User Joined: 09 May 2005 Posts: 17

I have a main program A which is calling Program B.

Is it possible that the sub-program B in turn call another program C?

I heard like only in MS-COBOL this type of sub-program calling is possible and not in Mainframe COBOL Batch programs but is possible in On-line programs.

Can anyone explain me is this correct or not?

Thanx,
Komal

dbzTHEdinosauer · Posted: Thu Feb 19, 2009 12:37 pm

you were miss-informed about the limitations of MF-COBOL.

suggest you read the documentation.

dick scherrer · Posted: Thu Feb 19, 2009 8:06 pm

Hello,

rajulan · New User Joined: 11 Jan 2008 Posts: 66 Location: India

Hi Komal,

As dick said you could have searched in the IBM manuals.

I got this for you from the manual.

In the PROCEDURE DIVISION, a program can call another program (generally called a subprogram in COBOL terms), and this called program can itself call other programs. The program that calls another program is referred to as the calling program, and the program it calls is referred to as the called program. When the called program processing is completed, the program can either transfer control back to the calling program or end the run unit.

It is possible in Mainframe batch programs.

Thanks,
Rajulan.