IBM Mainframe Forum

by **Mehdi shri** » Mon Apr 15, 2013 11:18 am

Dear friends
I my JCL there is following statement:

//ACBGEN EXEC PROC=ACBGEN,SOUT='*',COMP='POSTCOMP'
//G.IMS DD DSN=IMSV7.BNK.PSBLIB,DISP=SHR
// DD DSN=IMSV7.BNK.DBDLIB,DISP=SHR
//G.IMSACB DD DSN=IMSV7.BNK.ACBLIB,DISP=SHR
//G.SYSIN DD *
BUILD PSB=MYPSB001

What is the meaning of G(dot)SYSIN . Is it special meaning for period (or dot character) on DDNAME. (Same question for G.IMS and G.IMSACB)

by **BillyBoyo** » Mon Apr 15, 2013 11:33 am

If you look in the PROC ACBGEN you'll from a "step" called G. The "G." is a method to override/add DD names in step G of the PROC.

by **NicC** » Mon Apr 15, 2013 1:13 pm

The dot is a seperator just as in the dataset name. In the datasetname it seperates the different levels (qualifiers) and in a DDNAME override it sepearatesthe stepname being over-ridden from the ddname. All is explained in either/both of the JCL language reference manual and JCL users guide.

by **Ed Goodman** » Mon Apr 15, 2013 7:25 pm

The format is stepname.ddname for an override. So look for the 'G' step in your proc.

You can also ADD dds to a step this way. Also, make sure the overrides are in the same order as the proc ddnames. New ones go last.

IBM Mainframe Forum

What is the meaning of "dot" in DDNAME.

What is the meaning of "dot" in DDNAME.

Re: What is the meaning of "dot" in DDNAME.

Re: What is the meaning of "dot" in DDNAME.

Re: What is the meaning of "dot" in DDNAME.