Answer / aram dodakian

Parameter maps are used to create conditional query
subjects that allow for substitutions when the report is
run. Parameter maps are objects that store key-value pairs.
Parameter maps are similar to data source look-up tables.
Each parameter map has two columns, one for the key and one
for the value that the key represents. You can manually
enter the keys and values, import them from a file, or base
them on existing query items in the model.

The value of a parameter can be another parameter. However,
you must enclose the entire value in number signs (#). The
limit when nesting parameters as values is five levels.

When you use a parameter map as an argument to a function,
you must use a percentage sign (%) instead of a dollar sign
($).

Constraint
Parameter maps are recommended for smaller lookup tables.

Steps to Manually Create a Parameter Map
Click the Parameter Maps folder and, from the Actions menu,
click Create, Parameter Map.

In the Name box, type a name for the new parameter map.

Click Manually enter the parameter keys, and/or import them
from a file and click Next.

Do one of the following:

To manually enter values, click New Key, type a key, and
press Tab to enter a value for that key.

To import keys and values, click Import File and identify
the location of the appropriate .csv file. You can import
from a .txt file only if the values are separated by tabs
rather than commas.

Answer / shashi

parameter are key value pairs. parameter maps secure data within environment.
parameter has 2 columns. 1 key 2 value we manually enter keys and values we can import and export parameter maps

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