Answer Posted / naveen kumar
Before doing incremental aggregation u need to know incremental load, source data should be loaded incrementally, place a aggregator transformation group the ports on your requirement,like sales date then write your aggregate functions like max, min, sum, avg etc.. then check the property of incremental aggregation in session make sure the target table should have a primary key if it is relational then run the workflow... then u get the inital values pass a new record to the source and run the workflow.
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