Eliminating of duplicate records without using dynamic lookups
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Do we need an etl tool?
what make u disappointmnets in u r career
what is the difference between OLTP database and data warehousing database?
what is the meant by Normalization and de-normalization?
Explain and compare etl & manual development?
What are the etl testing operations includes?
What are snapshots? What are materialized views & where do we use them? What is a materialized view log?
what are variable ports and list two situations when they can be used?
what is meant by drill through?(Mascot)
where are the log files generally stored.Can you change the path of the file.what can the path be?
Difference between flat files and relational sources?
What are the names of the layers in etl?
Teradata 
