A data warehouse is a large-scale electronic repository of data that contains and organizes all of an organization's data in one place.
A data warehouse is a central repository of information that can be analyzed to make decisions more informed .
Data flows into the data warehouse from transactional systems or relational databases, and other sources.
Business analysts or the data engineers or data scientists, and decision makers generally access the data through business intelligence (BI) tools or SQL clients, and other analytics applications.
Data warehouses power different reports as well as dashboards, and analytics tools by storing data efficiently to minimize the input and output of data and deliver query results quickly to hundreds and thousands of users concurrently.
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