8 Defining and Managing Parameters. And then creates an individual parameter file for each Informatica session. If you selected the Global Multi-Parameter. What is the syntax to set value to mapping parameter. Then you can override the default values for mapping parameters in a parameter file. [Global] $$P_SRC_FILE. Learn various advance ways of dealing with PowerCenter Parameter files. Parameter file is a list of parameters and. Define values as Global level.

• Mapping Parameters In Informatica
• Informatica Parameter File Example

A PowerCenter 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. While creating and using parameter files is a straight forward option, often there are tricky scenarios or special needs that require you to deal with parameter files differently.

The examples listed below explain some of those scenarios with the help of mapping or workflow samples. Demonstrate the levels of specifications possible within a parameter file providing ways to define values as Global level and override them if necessary. Configure workflows so that you can dynamically skip sessions based on values in the parameter file.

The template illustrates a method of generating a parameter file at run time based on data from process table containing mapping parameters. Use mapping parameters and variables within PowerCenter to simulate a Business Rules Management System and make mappings more flexible. Instruct the PowerCenter Integration Service to read the session parameter files and workflow parameter files at the same time.

Mapping Parameters In Informatica

Try this tip for managing PowerCenter connections. Parametrize connections and use one parameter file to define them. Use the one parameter file in all your workflows. This will bring consistency to development and make it easy when connection changes are required.

Informatica Parameter File Example

Parameter files are also useful for defining “logic” related parameters or variables but define those in a separate parameter file(s). You can use separate “logic” parameter files to best fit your need, for example creating one per project, one per PowerCenter folder, etc. In order to use two parameter files in a workflow, I recommend this technique, add the $PMMergeSessParamFile=TRUE property to the connections parameter file and define the parameter file at the workflow level (Workflow Edit). Define “logic” parameter files at the session level. The property $PMMergeSessParamFile=TRUE will enable the workflow to use multiple parameter files.