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Data Warehousing FAQs


Data Warehousing FAQs

Questions: 163
Comments: 63
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 Data Warehousing FAQs
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View Question | Asked by : ssuvi

View Question | Asked by : Sunil

Explain the difference between an ETL developer and an ETL consultant. (if there is any differnce at all)? If so who has more responsibilities?
View Question | Asked by : mahendra nath

View Question | Asked by : natwar sharma

For a customer update transaction it should be inserted in customer table as a new record or as a insert with a new surrogate key. 
View Question | Asked by : Rakesh20878

Latest Answer: Because bitmapped indexes map values in the column to bits and store only the bit values, storage is reduced by several orders when bitmapped indexes are used. ...
Read Answers (1) | Asked by : Magudapathi

View Question | Asked by : gaurav bhuyar

How can we insert column header in target files when there are no column headers after completing the transformations when we are trying to load into the target ?

Latest Answer: The datawarehousing where all the operations activities maintained, so that you can access the anaysed data from adifferent place.For example, take bank operations ... if A deposit 10,000/- in B account in Hyderabad  and B withdraw the money ...

I want result as eno ename salary dense_rank100 A 10000 1200 B 9000 2300 C 9000 2400 
View Question | Asked by : ram kuamr

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