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what are the facilities provided by data warehouse to
analytical users?
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what is the meant by Normalization and de-normalization?
If you concatenate data from a normalizer transformation,the ports you concatenate cannot include OCCURS(T/F).
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what is HISTOGRAM? how to generate statistics?
State the differences between shortcut and reusable transformation
how do u estimate the depth of the session scheduling queue? Where do u set the number of maximum concurrent sessions that Informatica can run at a given time?
when will use SQL override in a lookup transformation?
Is apache nifi an etl tool?
How etl testing is different from database testing?
Define slowly changing dimensions (SCD)?
how do u estimate the number of partitions that a mapping really requires? Is it dependent on the machine configuration?
what is the difference between cardinality and Nullability?
Teradata 
