Wednesday, October 3, 2012

Aggregating without using Aggregator Transformation

In informatica level the aggregator transformations output can be obtained by replacing it with the following transformations

1) Sorter transformation -- Used to sort the data asc/dec

2) Expression Transformation -- basic transformation used almost in all the mappings

3) Filter Transformation -- To obtain the records with specific condn.

Aggregator transformation will reduce the number of records by aggregating on some specific columns given by us .

The Reverse transformation of Aggregator is Normalizer Transformation which will increase the number of Records.

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