Objectives

This course teaches:

• how to code JCL (Job Control Language) statements to obtain a correct execution of programs and the correct treatment of data sets;
• the interpretation of job output via SDSF (Spool Display and Search Facility) in order to correct possible errors as soon as possible;
• the use and creation of procedures.

Main topics

• Job Entry Subsystem (JES) and batch processing
• The different statements and their function:
• JOB statement: accounting information, job scheduling parameters, execution parameters, job output specification
• EXEC statement: PGM, PROC, PARM, COND, TIME, etc.
• DD statement: data set description, resource specification, output description, in-stream data sets, etc.
• IF-THEN-ELSE construction
• OUTPUT statement
• Job log and job output • SDSF manipulation
• Special datasets and associated parameters:

concatenation • partitioned and sequential data sets • temporary data sets • backward references • GDG • SMS parameters • JOBLIB • STEPLIB • ...

• INCLUDE and JCLLIB
• Use of procedures:

definition • parameters • changing and adding • symbolic parameters

• Debugging of JCL, frequent abends, ...
• JES2 control statements