Purpose of using DD dummy!!!

[pmpsp]

Hi,

Could anyone please let me know why we use 'dd dummy' in JCl.
What is the purpose for writing that?

Thanks in advance!!

Regards,
Pankaj.
_________________
With regards,
Pankaj Thakur.

[MrSpock]

DD DUMMY means the same thing as specifying DD DSN=NULLFILE.

Perhaps if YOU told us why you think you need to code DD DUMMY in your circumstances, perhaps we could provide a better answer.

[pmpsp]

Hi mate,

Actually I am the beginner in Mainframes.And wamted to know if I coded DD Dummy in the JCl of a programe then what will happen if the job runs successfully.

Could you please help me in this regards!!

[Anuj Dhawan]

To answer your question, JCL will executre the program you asked it to execute. If program look for the DD statement using DUMMY, it'll treat it as if there is a null file. It (end results) also depends on if you're executing a COBOL program or a utility...but it's essentially a null-file.

By the way, did you check the link provided by MrSpock?

[pmpsp]

Hi,
I checke dthe link.Also i checked the things practically.
Working all fine as said above.Thx both of you.

[Anuj Dhawan]

Glad to hear that!

[pmpsp]

Hi,
Could anyone please let me know the basic difference between triggerring and successor jobs.

Regards,

[Anuj Dhawan]

Please start a new thread for new questions...