Hands-on course for iSeries students who intend to write Control Language programs to simplify server management and make effective use of system resources.

Application programmers, systems programmers and others who have a need to write Control Language programs.

Before taking this course, students should be able to:

  • Perform basic system operations
  • Issue the appropriate commands to send inquiry and information messages
  • Use DDS and the host-base toolset (PDM,SEU, SDA) to create physical, logical, and display files
  • Describe basic iSeries work management
  • Create a library, output queue and a job description

After completing this course, students should be able to

  • Create CL programs to simplify system management tasks
  • Code CL statements for arithmetic, relational and logical expressions
  • Use the interactive source debugging facilities of STRDBG
  • Create user-defined commands with and without parameters
  • Create a Control Language program that processes a database file
  • Create and invoke a program that is activated periodically and executes asynchronously from other jobs

The course includes the following Topics:

  • Arithmetic/boolean/string expressions.
  • Program variable definition and use.
  • Built-in functions
  • Conditional processing.
  • CALL/RETURN and parameter passing.
  • Date conversion.
  • Display and database file handling.
  • Selective command parameter prompting.
  • Data Area and Data Queue manipulation.
  • Retrieve & change job/user attributes.
  • Using system values.
  • Message handling :
  • Correcting programs with source debug.
  • Never-ending batch programs.
  • User-defined commands.
  • Compiler options.

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