How to create a JCL where DD name is a variable

rdasari123 · New User Joined: 28 Aug 2008 Posts: 8 Location: Wilson, NC

Hi,

I am here with unusual situation.

How to create a JCL where DD name is a variable, I mean the dataset name changes from execution to execution.

Ex:

TEMP1 DD DSN=D555.AP.DDNAME, DISP=SHR

D555.AP.DDNAME will contain the dataset name to be processed.

Let me know if you need additional information.

Thanks,
Ram.

superk · Posted: Tue Mar 17, 2009 9:11 pm

Use an INCLUDE statement or a SET statement maybe?

rdasari123 · New User Joined: 28 Aug 2008 Posts: 8 Location: Wilson, NC

Thanks for prompt resp.

INCLUDE statment is member of PDS, it wont, work.

in my case the Dataset name is in a file, it gets update from on-line.

It means the file to be processed is passed to JCL from CICS.

Craq Giegerich · Posted: Tue Mar 17, 2009 9:17 pm

Do you want the DD name as variable, the program processing the file would have to be able to handle a variable DD name, or do you want the DSN to be variable?

rdasari123 · New User Joined: 28 Aug 2008 Posts: 8 Location: Wilson, NC

Thanks for your resp.

I want "the DSN to be variable".

Ex:

Say the content of D555.AP.DDAME is "J555.AP.GDG.G01V0022"

in JCL

TEMP DD DSN=D555.AP.DDAME, DISP=SHR

Then TEMP should refer to J555.AP.GDG.G01V0022, in JCL.

Thanks again.

Craq Giegerich · Posted: Tue Mar 17, 2009 9:37 pm

There is a big difference between a variable dd name and a variable dsn name.

Bill Dennis · Posted: Tue Mar 17, 2009 9:55 pm

You could do something with SORT where a new JOB is created from static JCL statements and the dataset name in file D55.AP.DDNAME and then submitted to INTRDR.

rdasari123 · New User Joined: 28 Aug 2008 Posts: 8 Location: Wilson, NC

CICS is not going to submit the job, its going to update a dataset with data set name. The dataset has to be processed in JCL.

superk · Posted: Tue Mar 17, 2009 10:54 pm

Ram, I think you've been presented with all of the viable options. You'll have to use an INCLUDE and/or SET, programatically build and submit the JCL, or you'll have to use a program to read the content of 'D555.AP.DDAME' and use a dynamic allocation routine (i.e. BPXWDYN or TSO ALLOCATE) to process the imbedded dataset name.