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Monday, 9 September 2013

Mapping Parameter in Informatica


By on 04:12:00




Reconsider the RANK Transformation that fetches the department-wise second highest salary.

Earlier, we have used RANKINDEX = 2 (constant), we’ll modify that to include mapping parameters and variables.

Create mapping M_RANK_PARA.

Before applying the filter, go to Mappings Menu and click on Parameters and Variables…..



Mapping Parameter in Informatica
Mapping Parameter in Informatica




Define parameter (constant value which is defined before the mapping is run).



Mapping Parameter in Informatica
Mapping Parameter in Informatica




Add a new variable $RANK_SAL .Type (Parameter).

We can also give an initial value here.

The order of execution will be Repository variables (parameters and variables) Initial Value 



Mapping Parameter in Informatica
Mapping Parameter in Informatica




Now Edit the Filter Transformation and in the Properties Tab click on Filter Condition.

In the Variables tab, select Mapping Parameters $RANKSAL.

Mapping Parameter in Informatica
Mapping Parameter in Informatica




Mapping Parameter in Informatica
Mapping Parameter in Informatica



In the workflow designer, create a workflow WKF_RANK_PARA.

In mapping the Transformation properties select Number of Ranks = 5.

Mapping Parameter in Informatica
Mapping Parameter in Informatica




Open a notepad and type

MEEN_PRACTICAL.WF:WKF_RANK_PARA.ST:s_M_RANK

(folder.workflow.session)


Mapping Parameter in Informatica
Mapping Parameter in Informatica




Save the file as rank_para.prm

Edit the Session and in the Properties Tab give the parameter filename as C:\rank_para.prm

Mapping Parameter in Informatica
Mapping Parameter in Informatica



To change the parameter value modify .prm file and right click on the session and restart the task.



Mapping Parameter in Informatica
Mapping Parameter in Informatica




Mapping Parameter in Informatica
Mapping Parameter in Informatica




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