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vattikonda · Beginner Joined: 09 Jan 2003 Posts: 15 Topics: 5

We are considering migrating our current application that is written in PL/I Ver. 2 Release 3 to Enterprise COBOL. We would like to go to an architecture similar to that we have in PL/I with EXTERNAL STATIC to minimize the amount of data transfer. Please let me know if there is a way I can address the data location in Enterprise COBOL and access it from various programs without passing on the actual data area using the Linkage section.

Example:
Prog A - Has the data and the address to the data location coded within Linkage Section

Prog B - When called, reads the required data and updates the information based on the address location (In other words, the data if referred in Prog A or any other Program will reflect the change made by Prog B).

Thanks,
Giri

kolusu · Posted: Fri Oct 31, 2003 1:07 pm Post subject:

Vattikonda,

You can use EXTERNAL clause to allow separately compiled programs and methods (including programs in a batch sequence) to share data items.

check this link which explains Sharing data by using the EXTERNAL clause

http://publibz.boulder.ibm.com/cgi-bin/bookmgr_OS390/BOOKS/IGY3PG10/4.2.5?DT=20020923143836

check this link which explains Sharing files between programs (external files)

http://publibz.boulder.ibm.com/cgi-bin/bookmgr_OS390/BOOKS/IGY3PG10/4.2.6?DT=20020923143836

Hope this helps...

cheers

kolusu

vattikonda · Beginner Joined: 09 Jan 2003 Posts: 15 Topics: 5

Thanks Kolusu. As always you are the best.

Cheers,
Giri