Adata warehouse is a collection of information, gathered from many different databases, that supports business analysis activities and decision-making tasks. physical, transactional logical, transactional physical, operational logical, operational

A data warehouse is a Logical collection of information, gathered from many different operational databases, that supports business analysis activities and decision-making tasks.

Explanation:

Data warehouse is define as a technique in business in which data is collected from various sites and managed in such a way that a mixture of technologies is generated that helps to make use of data in a strategic way.

In this technique data is transformed in to information and in provided to the users in timely manner as needed to make a difference.

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