JCL-IEFBR14

It is most useful utility in Real-time project (though it is called DO-Nothing). I got a question in an interview. So, this is 100% helpful to you.

It is also called DO-Nothing. Still it does some of the following functions. Exclusively for this blog readers, I am suggesting a book to get more insights.

sample code:

//step1    exec   pgm=IEFBR14

//DD2    DD   DSN=test.dd.data1,disp=(NEW,CATLG)

//                   UNIT=SYSDA,SPACE=(CYL,(3,5),RLSE)

//DD2   DD  DSN=TEST.DD.DATA2,DISP=(OLD,DELETE)

//                  UNIT=SYSDA,SPACE=(CYL,(3,5),RLSE)

  • Creates a data set
  • If we do not want,we can delete the dataset
  • Z/os job scheduler will use this utility to check syntax errors
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Author: Srini

Experienced software developer. Skills in Development, Coding, Testing and Debugging. Good Data analytic skills (Data Warehousing and BI). Also skills in Mainframe.