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https://docs.oracle.com/database/121/DWHSG/concept.htm
A data warehouse is a databas e designed to enable business intelligence activities: it exists to help users understand and enhance their organization's performance. It is designed for query and analysis rather than for transaction processing, and usually contains historical data derived from transaction data, but can include data from other sources.
https://docs.oracle.com/cd/E11882_01/server.112/e25554/concept.htm
Data Warehouse Architecture: with a Staging Area and Data Marts. Although the architecture in Figure 1-3 is quite common, you may want to customize your warehouse's architecture for different groups within your organization. You can do this by adding data marts, which are systems designed for a particular line of business. Figure 1-4 illustrates an example where purchasing, sales, and ...
https://en.wikipedia.org/wiki/Data_warehouse
The integrated data are then moved to yet another database, often called the data warehouse database, where the data is arranged into hierarchical groups, often called dimensions, and into facts and aggregate facts. The combination of facts and dimensions is sometimes called a star schema. The access layer helps users retrieve data.
https://education.oracle.com/cDescMap/US/IN/courP_676
Oracle Database 11g: Data Warehousing Fundamentals, This Database 11G Data Warehousing training teaches data warehousing concepts and technologies, while examining Oracle’s approach to data warehouse implementation. Review partitioning, parallel operations, materialized views and more.
https://panoply.io/data-warehouse-guide/the-difference-between-a-database-and-a-data-warehouse/
What is a Data Warehouse? A data warehouse is a system that pulls together data from many different sources within an organization for reporting and analysis. The reports created from complex queries within a data warehouse are used to make business decisions. In more comprehensive terms, a data warehouse is a consolidated view of either a physical or logical data repository collected from ...
https://blogs.oracle.com/bigdata/data-lake-database-data-warehouse-difference
Jan 09, 2020 · The Data Warehouse. But the data warehouse is a model to support the flow of data from operational systems to decision systems. What this means, essentially, is that businesses were finding that their data was coming in from multiple places—and they needed a different place to analyze it all. Hence the growth of the data warehouse.
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