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Compare ETL & Manual development?
Explain about hash partitioning?
can Informatica be used as a cleansing tool? If yes, give examples of transformations that can implement a data cleansing routine.
Is apache nifi an etl tool?
What is tracing level?
how would u estimate the size of Aggregator transform data and index cache?
What are the various tools used in etl?
Difference between flat files and relational sources?
What are dimensions?
how do use session mapping parameters ?(in which transformation)
Identifying the bottlenecks in various components of Informatica and resolving them.
what are Lookup caches options? Including persistent caches.
What is meant by incremental load?
what are the concerns of OLTP and DSS systems?
What is etl tool in hadoop?