INTERVIEW QUESTIONS DATA WAREHOUSING DETAILS

Question: Can a Data Warehouse also be used for Transaction Database?

Answer: No a data warehouse cannot by definition be used as a transaction database. A data warehouse is "read only" data that does not change once it has been loaded and used for information purposes. Data is loaded into a data warehouse and then cannot be modified. It does not change. A transactional database processes data one transaction at a time. It is a very dynamic and lively system. Data can be modified and changed in a transactional system.

No a data warehouse cannot by definition be used as a transaction database. A data warehouse is "read only" data that does not change once it has been loaded and used for information purposes. Data is loaded into a data warehouse and then cannot be modified. It does not change. A transactional database processes data one transaction at a time. It is a very dynamic and lively system. Data can be modified and changed in a transactional system. Source: CoolInterview.com

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