use of display

[neeraja]

Hi,

Plz let me now the use of display statment in a CICS program. If explained with an example will be more easy to understand.



With regards
Neeraja

[Krishna]

Display statement is used in CICS for debug the program.
If you use display statement, those values will be printed in the main cics job.

For example.. your cics region names is CICSK200

if you go to spool you can find a job running with this name. In the job you can
find these values displayed.

[neeraja]

Hi
Thankyou for u r answer.


Neeraja

[DavidatK]

I would like to add an addendum to what Krishna posted. There is a drawback to using ?DISPLAY?s in a CICS program and most shop will not allow it on their production machine.

The ?DISPLAY? verb invokes a MVS function that does a GETMAIN for the DISPLAY string, but does not release it until the MVS task is complete. The MVS task that is running is CICS, not your transaction. So, what happens is that every time a DISPLAY is used in CICS a small bit of memory is used up and not released. If there are many DISPLAYs being done, the total amount of memory used may become a concerning factor, but more of a factor is the fragmentation of memory that?s happening. Even though you may not have used a substantial amount of memory, the fragmentation can get to the point the a larger GETMAIN request from MVS may fail.

Dave