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Sunday, 7 July 2013

Router transformation in Informatica


By on 10:38:00


A Router transformation is similar to a Filter transformation because both transformations allow you to use a condition to test data. A Filter transformation tests data for one condition and drops the rows of data that do not meet the condition. However, a Router transformation tests data for one or more conditions and gives you the option to route rows of data that do not meet any of the conditions to a default output group.


If you need to test the same input data based on multiple conditions, use a Router Transformation in a mapping instead of creating multiple Filter transformations to perform the same task. The Router transformation is more efficient when you design a mapping and when you run a session. For example, to test data based on three conditions, you only need one Router transformation instead of three filter transformations to perform this task. Likewise, when you use a Router transformation in a mapping, the Informatica Server processes the incoming data only once. When you use multiple Filter transformations in a mapping, the Informatica Server processes the incoming data for each transformation. 

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