Posted On: Feb 22, 2018
This method was adopted back in the 1980s by IBM researchers Paul Murphy and Barry Devlin. They happen to put together business data warehouse in a 1988 paper, written by the duo.
William H. Inmon improved it further as data warehouse development, by the introduction of his book Building the Data Warehouse in 1992.
The data warehousing institute was founded in 1995 and the technology started growing. In 2002, Inmon introduced a new concept – data warehousing 2.0.
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A data warehouse consists of data which is obtained from data sources or in other words, external sources...