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mainframeutilitiesjcl

Merge flat files

I am trying to create a JCL for merging flat files using IEBGENER. The number of input files is not constant. Can we do it using IEBGENER?

Solution

  • Can you override IEBGENER SYSUT1 DD when invoking the PROC? Something like:

    //EXEC procedure
//procstep.SYSUT1 DD DSN=first.copy.file,DISP=SHR,
//          DSN=second.copy.file,DISP=SHR,
//          DSN=thrid.copy.file,DISP=SHR
etcetera...

    Where procedure is the catalogued procedure and procstep is the IEBGENER step.

    When multiple datasets are given for a single DD statement they are concatenated together. As far as IEBGENER is concerned they should look like a single input dataset.