Use a parameter file to define values that you want to update without having to edit the task. You update the values in the parameter file instead of updating values in a task. The parameter values are applied when the task runs.

You can use a parameter file to define parameter values in

mapping

tasks.

Define parameter values for connections in the following transformations:

Source
Target
Lookup
SQL

Define parameter values for objects in the following transformations:

Source
Target
Lookup

Also, define values for parameters in data filters, expressions, and lookup expressions.

You enter the parameter file name and location when you configure the task.

You can't use a parameter file in a mapping task that is based on a mapping in SQL ELT mode.