Asked by: Nahim Gehttechnology and computing data storage and warehousing
How long data can be stored in data warehouse?
Last Updated: 22nd April, 2020
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Moreover, how is data stored in a data warehouse?
Data is typically stored in a data warehouse through an extract, transform and load (ETL) process, where information is extracted from the source, transformed into high-quality data and then loaded into a warehouse.
Also Know, how do data warehouses work? A data warehouse works by organizing data into a schema that describes the layout and type of data, such as integer, data field, or string. When data is ingested, it is stored in various tables described by the schema. Query tools use the schema to determine which data tables to access and analyze.
Similarly, it is asked, what is a data warehouse used for?
Data warehouses are used for analytical purposes and business reporting. Data warehouses typically store historical data by integrating copies of transaction data from disparate sources. Data warehouses can also use real-time data feeds for reports that use the most current, integrated information.
What is data warehousing with example?
A data warehouse essentially combines information from several sources into one comprehensive database. For example, in the business world, a data warehouse might incorporate customer information from a company's point-of-sale systems (the cash registers), its website, its mailing lists and its comment cards.