A Data Warehouse is a large, centralized repository of data that is specifically designed to support business intelligence (BI) activities, such as reporting, online analytical processing (OLAP), and data mining.
Data warehouses are typically used to store historical data, which can be analysed to gain insights and make informed decisions. The data in a data warehouse is typically organized in a way that makes it easy to retrieve and analyse, such as through the use of a star or snowflake schema.
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