Question

What types of transformation functions are needed for data in ETL?

a.

Data cleansing and data extraction

b.

Input selection and name conversions

c.

Separation of input structures and data aggregation

d.

Data mining and data warehousing

Posted under Data Warehousing and OLAP

Answer: (c).Separation of input structures and data aggregation Explanation:Types of transformation functions needed for data in ETL include separation of input structures and data aggregation.

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Q. What types of transformation functions are needed for data in ETL?

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