1.

What are the hierarchy levels in JCL?

Answer»

Every STATEMENT of JCL consists of the HIERARCHY levels:

  • Identifier field
  • Name field
  • Operation field
  • Parameter field (POSITIONAL, KEYWORD)
  • COMMENT field (if any)

Example:

//STEP1 EXEC PGM=MYPROGRAM,TIME=1440   //* JCL Statement Structure

Here, 

  • // is the identifier of the JCL statement.
  • STEP1 is the name ASSIGNED to the JOB step.
  • EXEC is a keyword used to indicate that it is an EXEC statement.
  • PGM is a positional parameter and specifies the name of the program to be executed
  • TIME is the keyword parameter that specifies the maximum amount of processor time the step can use.
  • //* is the identifier of the comment field and ‘JCL statement structure’ is the comment.


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