Dataware housing interview question and answers

What is Data warehousing?
Answer
A data warehouse can be considered as a storage area where interest specific or relevant data is stored irrespective of the source. What actually is required to create a data warehouse can be considered as Data Warehousing. Data warehousing merges data from multiple sources into an easy and complete form.
Data warehousing - What is Data warehousing? - May 11, 2009 at 13:40 pm by Vidya Sagar
Answer
Data warehousing is a process of repository of electronic data of an organization. For the purpose of reporting and analysis, data warehousing is used. The essence concept of data warehousing is to provide data flow of architectural model from operational system to decision support environments.