Z/OS (OS/390) JES2 Job Control Language

Overview
This course is intended to provide a thorough understanding of Job Control Language (JCL) in the OS/390 environment. In addition to basic JCL concepts, the course will also deal with in-stream and cataloged procedures.

Practicals take place throughout the course and each attendee will have a terminal.

Course objectives
After completing this course each attendee should thoroughly understand and be able to use JCL and JES2 control statements.

By the end of this course you will have learned
How units of work (jobs) are identified to OS/390, together with the resources needed during execution; how to code basic JCL streams and to correct the common errors incurred with job submission.

Who should attend
IT staff who initiate batch jobs in the OS/390 environment or whose job requires an understanding of OS/390 job management.

Pre-requisites
A knowledge of basic OS/390 concepts and of ISPF use, equivalent to OS/390 Appreciation and TSO & ISPF Introduction courses.

Course synopsis

• Introduction
  The concepts involved in understanding JCL are introduced, together with JCL statement, syntax, organisation and continuation
• OS/390 job control statements
  The fundamentals of JOB, EXEC, and DD statements are introduced
• Datasets
  Sequential, partitioned and VSAM datasets; the creation and use of generation data groups, catalogs and VTOCs
• Procedures
  The use of procedures, including symbolic parameters and over-rides; writing in-stream procedures
• Conditional execution
  The COND parameter and IF-THEN-ELSE statements
• Advanced JCL parameters
  Parameters on the JOB, EXEC, and DD statements; DFSMS concepts and associated JCL; the OUTPUT statement