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Table of Contents

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  1. Preface
  2. Understanding Pipeline Partitioning
  3. Partition Points
  4. Partition Types
  5. Pushdown Optimization
  6. Pushdown Optimization and Transformations
  7. Real-time Processing
  8. Commit Points
  9. Row Error Logging
  10. Workflow Recovery
  11. Stopping and Aborting
  12. Concurrent Workflows
  13. Grid Processing
  14. Load Balancer
  15. Workflow Variables
  16. Parameters and Variables in Sessions
  17. Parameter Files
  18. FastExport
  19. External Loading
  20. FTP
  21. Session Caches
  22. Incremental Aggregation
  23. Session Log Interface
  24. Understanding Buffer Memory
  25. High Precision Data

Advanced Workflow Guide

Advanced Workflow Guide

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Parameter Files Overview

Parameter Files Overview

A parameter file is a list of parameters and variables and their associated values. These values define properties for a service, service process, workflow, worklet, or session. The Integration Service applies these values when you run a workflow or session that uses the parameter file.
Parameter files provide you with the flexibility to change parameter and variable values each time you run a session or workflow. You can include information for multiple services, service processes, workflows, worklets, and sessions in a single parameter file. You can also create multiple parameter files and use a different file each time you run a session or workflow. The Integration Service reads the parameter file at the start of the workflow or session to determine the start values for the parameters and variables defined in the file. You can create a parameter file using a text editor such as WordPad or Notepad.
Consider the following information when you use parameter files:
  • Types of parameters and variables.
     You can define different types of parameters and variables in a parameter file. These include service variables, service process variables, workflow and worklet variables, session parameters, and mapping parameters and variables.
  • Properties you can set in parameter files.
     Use parameters and variables to define many properties in the Designer and Workflow Manager. For example, you can enter a session parameter as the update override for a relational target instance, and set this parameter to the UPDATE statement in the parameter file. The Integration Service expands the parameter when the session runs.
  • Parameter file structure.
     Assign a value for a parameter or variable in the parameter file by entering the parameter or variable name and value on a single line in the form
    name=value
    . Groups of parameters and variables must be preceded by a heading that identifies the service, service process, workflow, worklet, or session to which the parameters or variables apply.
  • Parameter file location.
     Specify the parameter file to use for a workflow or session. You can enter the parameter file name and directory in the workflow or session properties or in the
    pmcmd
     command line.