Informatica parameter file

Informatica parameters and variables are used to minimize hard-coding in ETL, thereby increasing flexibility, reusability, readabilty and avoides rework by changing the values in the ETL
Parameter files provide us with the flexibility to change parameter and variable values every time we run a session or workflow with out touching the mapping

A parameter file contains two sections:
1. Heading section:
It is to identify the integration service, folder, workflow, worklet, session to which the parameters or variables apply
2. Definition Section
This section contains list of parameters and variables with their assigned values

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