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- A data warehouse is a repository of historical data that is organized by the subject to support decision-makers in the organization1. Once data is stored in a data mart or warehouse, it can be accessed. A data warehouse is a collection of electronic data from different sources that is organized to provide the best possible reporting and data analysis2.Learn more:✕This summary was generated using AI based on multiple online sources. To view the original source information, use the "Learn more" links.
A "data warehouse" is a repository of historical data that is organized by the subject to support decision-makers in the organization. [7] Once data is stored in a data mart or warehouse, it can be accessed.
en.wikipedia.org/wiki/Data_warehouseEt data warehouse er en samling af elektroniske data, fra forskellige kilder, der er organiseret så de bedst muligt giver mulighed for at lave rapporter og analyse af data.da.wikipedia.org/wiki/Data_warehouse - People also ask
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In computing, a data warehouse (DW or DWH), also known as an enterprise data warehouse (EDW), is a system used for reporting and data analysis and is considered a core component of business intelligence. Data warehouses are central repositories of integrated data from one or more disparate … See more
ETL-based data warehousing
The typical extract, transform, load (ETL)-based data warehouse uses staging, data integration, and access layers to house its key functions. The staging layer or staging database stores … See moreA data warehouse maintains a copy of information from the source transaction systems. This architectural complexity provides the … See more
Facts
A fact is a value, or measurement, which represents a fact about the managed entity or system.
Facts, as reported by … See moreThe environment for data warehouses and marts includes the following:
• Source systems that provide data to the warehouse or mart;
• Data … See moreThe concept of data warehousing dates back to the late 1980s when IBM researchers Barry Devlin and Paul Murphy developed the "business data warehouse". In essence, the data … See more
Bottom-up design
In the bottom-up approach, data marts are first created to provide reporting and analytical capabilities … See moreWikipedia text under CC-BY-SA license WEBAug 23, 2012 · Learn how data warehousing evolved from the relational database revolution to the current industry standards. Explore the contributions of Bill Inmon, Ralph Kimball and other pioneers in data …
WEBSep 14, 2022 · Learn what a data warehouse is, how it works, and why it is important for business intelligence. Compare data warehouses with databases, data lakes, and data marts.
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