CLASS parameter oveeride

Anu R · New User Joined: 09 Apr 2008 Posts: 18 Location: India

Hi,

My JCL consists of 6 steps.But I have to execute 3 steps by providing a different class parameter.Hence i have to spilt my JCL into 2 JCL's.Is there any way to do this in a single JCL?Is it possible to provide overrides in the step for the CLASS paramete?

Please advise

Regards,
Anu

dick scherrer · Posted: Wed Jun 18, 2008 10:00 am Post subject:

Hello,

Once a job begins execution, it runs in that class.

What can be gained by separating a job into a second class?

If we understood the requirement (not switching classes, but why), we may be able to offer suggestions.

Anu R · New User Joined: 09 Apr 2008 Posts: 18 Location: India

I have to use a different class for executing or compiling DB2 programs.For normal COBOL pgms and other steps it is a different class.

dick scherrer · Posted: Wed Jun 18, 2008 10:26 am Post subject:

Hello,

I suggest you talk with the people who make the rules for your system.

From what you've said, if a job does any db2, the entire job should
run in the "db2 class". If it has no db2, it runs in another class.

Consider a 10 step job that had 4 db2 steps and 6 non-db2 steps and they are interleaved. It makes no sense to try to "dance around" and run that many different jobs to accommodate "class-switching".

In either case, class switching would provide no benefit.

expat · Posted: Sat Jun 21, 2008 3:51 pm Post subject:

Yip, another case of "Rules is rules, even if they are useless rules".

manojtyagi_09 · New User Joined: 30 Oct 2006 Posts: 8

If you want to execute only the first 3 steps with the CLASS u mentioned. Put a Null statement after the 3rd step. All the below steps will not be executed.

manojtyagi_09 · New User Joined: 30 Oct 2006 Posts: 8

[quote="manojtyagi_09"]

Thinking that you want to execute first 3 steps with CLASS = A and next 3 with CLASS = B.

First Take CLASS = A in job statment and run the first 3 steps using the null statement end the end of 3rd step.

Once done

Change CLASS = B in job stattment take RESTART = Step 4 in your JCL and submit that .

That's it.

But i do not know what is the use of doing such thing.