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