Importance of Data Warehouse
A data warehouse is a large, centralized database that stores data from various sources in an organization. It is important to have a separate copy of the data in a data warehouse because it enables faster and more efficient analysis, separates operational and analytical systems, and provides a historical record of data. MySQL is one type of database technology that can be used for a data warehouse, but building a data warehouse requires careful planning and design, including creating a dedicated schema or set of tables for the data warehouse and using optimization techniques such as data partitioning and indexing to improve performance.
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